Transition while acceleration

All the complicated vacuum control on the distributor equipped in '71 VW Super Beetle were killed and the result was incredibly excellent. Combustion firing timing at idle speed was set at BTDC 5 degree as a matter of fact. BTDC 5 degree is the most favorable idle speed advanced position to attain comfortable accelerating at middle speed.

All the advancing effect were done without vacuum advancer, only by mechanical centrifugal advancing construction.

Once the information that no vacuum advancing device is required, diaphragm construction for advancing control should be eliminated also nipples for the signals on the carburetor are closed.

I just remembered that I got 009 distributor tens year ago! Now have I no reason not to appear stage if it has no diaphragm vacuum advancer. Some information tells that mechanical signal coupling delayed 90 degree, so hi-tension cord connection must be changed.

Anyway, smooth transition while acceleration phase is the first requirement, it' a interesting task for tomorrow. Super Beetle never betray to keep a geriatric enthusiast.

 

Road Transport and Vehicle Act

Vintage VW Training Film shows well how to keep Air-cooled Beetle even now---over 50 years old production. Especially complicated distributor control after 1971 that is completely different from those before inviting Muskie Act for anti-pollution.

As a common sense, combustion firing timing is set around BTDC 10 degree, but VW introduced ATDC 5 degree with dash-pod device to prevent quick rotation down at idle speed. The purpose of additional device is nothing but excessive amount of Hydro Carbon and Carbon Oxide in exhausted gas. It was extremely difficult to implement countermeasures applying conventional equipment and service engineers had very hard time to adopt with new Road Transport Vehicles Act. 

Actually, double diaphragm vacuum advancer, ATDC 5 degree at idle and delayed returning speed with dash-pod looked so strange.

Thank to such a strange and queer additions I was so disappointed by spilled drive feel so I remember as a clear memory. Combustion firing timing suffer and dull response brought very bad drive feel without discussions. It was often the case that characters of motor response differ completely around 1970.

Consequently, my Super Beetle need to know the most suitable firing timing setting though the point is shown between 4~7 degree in the scheme, the discrepancy 3 degree causes much disparity without doubt. Repeating test run by myself is the residual way.

By throttle opening at 1500 rpm to 2000 rpm, seeking the most stable timing might be the way. 

"Establishing Maximum Combustion Efficiency Firing Timing" is the Goal. Small space of 11AD engine room is nothing but a Garden of Blis for me! As I hate the word "Tolerance", want I null pin point. Am I a fool? 

Ignition timing & transient charcteristics

Deeper investigation about the combustion firing timing of '71 Super Beetle in the Website obliged me to try more experimental searches on my own vehicle. Deserting double diaphragm vacuum advancer, single diaphragm was invited---changing the original condition is a new condition. Complicated anti-pollution system was introduced in '71 models. This is why it makes is complicated and confused to set the adequate combustion timing. To know the best firing timing in every phase and smooth transition by driving by myself actually. 

Old VW movie appeared in the Website illustrated centrifugal advance and vacuum one were drawn together but not shown actual advancing firing timing respectively in combination both advancing effect together. The width of the angle of BTDC drawn in the scheme is too broad to specify. Though some discretion might be required, both narration and scheme did not explain enough to understand the phenomena of combustion timing. I have been overcame by anxiety for long time about this problem. The fact that no improvement did not done by time passing, I tried to prove it by myself. Comparison of the centrifugal transient characteristics between 009 and ordinary distributor with no vacuum advancer should be known actually. This kind of unknown trial makes me enthusiastic.

New part ordered few years ago and left untouched 009 with fully mechanical centrifugal vacuum advancer, with no vacuum diaphragm device might be one of a choice. This kind of research and development is great fun for me and purpose to live. Coming long holidays in the beginning of May would be killed by this procedure. 

Prognosis of right eye surgery

Cataract surgery done on my right side eye is going favourably in about one month. After replacing from innate crystal tissue into artificial one has far improved my eyesight as to capable in driving vehicle. 

Artifucial one has the focus poing at 5 m distance, so just a bit brule at infinity scienry but abalable.

Removing curtain from my right side eye as if covered with gauz , I feel great at all. To be more specific, the aspherical construction caused ring shaped blure and ghost in the hi-light, but they are acceptable for me. And the color is too better, white is so transparent, no complaint if different from innate lef side. God would give me some punishment if I declare something.

My quality of life has far improved, I appreciate my eye doctor and sophisticated technology in the field. 

Improvement

 It's a great fun for my life to compensate the gap between overlooking and under looking. Basically, I gathered necessary information by consulting papers and articles written by former researchers in specific field. It was so difficult to do that wasting time. Articles I wanted were floating in the Ocean of them. But, now, in the period of Internet, Web is scattered in every direction and very easy to do that in very short period of time.

In spite of golden condition, I have been in misunderstanding thought about combustion firing timing of VW Super Beetle for over tens of years. I knew about the double diaphragm vacuum advancer specifically equipped in '71 production and the fact that advancing and delaying functions performed done at the same time. Recognizing such a function with watching the scheme actually, I still believed in the necessity of vacuum advancing effect for smooth acceleration. The shape of mechanical distributor was that of equipped diaphragm(single) chamber aside, so printed in my Cortex. This is why I fed vacuum signal to distributer without doubt for long time until few days ago. I had some suspicion on the function of accelerator fuel pomp in the carburetor body, because of ill function while departing phase.

Watching up the graphic drawn the relation between vacuum advance and delay also mechanical centrifugal advance, I come to the conclusion that vacuum advancing is not always necessary for replacing distributor from double diaphragm to single or less chamber distributor! After adjusting the timing at zero degree under no vacuum condition, I was so surprised to feel completely different attitude of 1600 cc AD motor as if released from heavy burdens. In addition to lubrication on the steering gear box, these improvements changed it's character like different vehicles. Also, first idle phase with stall tendency was far improved without thermostat function.

Mechanical thermostat in Air-cooled VW

Most of the case, we didn't discuss about the existence of Thermostat at all even in the foreign air-cooled category. Though old Beetle's motor is so designed that cooling system is not liquid cooling but air-cooled, the parts, thermostat is  equipped is equipped on the #2 cylinder fin. This mechanical construction controls air amount at first idle stage from closed to fully opened. As a matter for regret, this air controlling doors are kept fully opened because of thermostat failure leading to over cooled condition at first idle stage. This is why make it difficult to keep idle motor control. Most of air-cooled have some failed thermostat that is relatively fail, in addition, this parts never appear in the market, so grasp it without hesitation if you come across wherever and whenever it might be.

Consequently, idle speed control is not always depended only on the construction of choke controlling system installed in the carburetor body, this mechanism is controlled by coiled bi-metal heating electrically. I make it a rule to cut the circuitry at the beginning of first idle while cold season to extend warming up stage.

What I wanna say here is next stage to know the relation with idling stop tendency between BTDC 5 degree and TDC zero. As for my fortune telling, first idle will turn worse because choke control is done under advanced combustion condition. More investigation would be required on this point. This marvelous mechanical controlling system was invented by the German engineers over 50 years ago, interesting don't you think?

Double diaphragm vacuum advancer

Once the steering feel was far improved by lubrication, too sensitive accel feel was appeared up. I have been in the thought that distributor should be equipped both vacuum advancer and centrifugal one and they work well in harmony. Vacuum advancer react more quickly than mechanical centrifugal advancer, so the former one is indispensable to obtain smooth and sensitive accel feel. Consequently, BTDC 5 degree was applied as a common sense. Remembering past, I applied TDC 0 degree on the way back home from Kobe Transport Bureau, acceleration became better. The bad habit to have a tendency to cough and stall if accel pedal was pushed down too much. Consequently, I determined to think it over combustion timing consulting VW manual for '72 Super Beetle manual.

The diaphragm vacuum advancer equipped on 34PICT3 carburetor was so strange as to have double diaphragm, they are for advance and delay construction respectively! Also, dash-pod was set at idle stopper point to prevent sudden low down of rotation. Double diaphragm construction is aimed at keep ATDC 5 degree idle rotation. All of these measures are purposed for Anti Pollution exhaust gas controlling.

Judging from the vacuum control performance appeared in the manual, they always act antagonistically leading to no advance nor delay as a matter of fact.

According to the information from manual description, no vacuum control and centrifugal advance controlling only is done!

Then I close vacuum hose for advance only diaphragm activation with 5mm dia. brass material and the combustion timing was set at zero degree TDC. It means that only centrifugal advancer is alive from TDC 0 degree. 

The impression of AD motor I have been in my mind for long time has completely revolved---now no complain at all! Bingo!!

No hesitation to push down accel pedal, no coughing nor stall down. Probably most of my elder brothers might know that 009 distributor has no vacuum advancer, this is why this one is so popular in US. A 10-year mystery has solved!

This description is done under happiest emotional condition.

11AD Steering gear box rubricant

 

Extraordinary resiting fliction on the steering wheel obliged me to feed hard gear oil. Though such kind of symptom was observed for long time ago, I thought the criminal of heavy steering must be caused by 15minites minus camber value instead of positive standard camber. Application of #90 gear oil wiped out all the strange and unpleasant reaction occurred in the steering gear box. The eye opening phenomena in my Super Beetle enhanced me to endure to keep this vehicle much longer.

Civic RS arrived

Civic RS arrived at hand to compensate a lack caused by sold Golf 7 GTI. Manual transmission and 40% profile tire are equipped standard. This model is so designed to meet with a bit softer suspension. But, from a geriatric standing point of view, too hard for daily use. This kind of driving taste is decided after several trials with desperate effort by the engineers in the specific division, so any changing or parts replacement by some another method are not preferable if we admire professionals. Tire pressure distribution might be permissible a bit?

Old Tokina RMC 80-200/f4.0 zoom lens

While tidying the shelves, I came across with an old, cloudy zoom lens. I probably won it at Yahoo auction for 1 yen. It's a useless lens that doesn't let light through properly. It only captures images that look hazy.

Tokina RMC 80-200/f4.0. It has an in-tube zoom adjustment system and does not extend. The internal cam structure is simple and the movement is light. I disassembled it and wiped down the entire lens surface, and now it forms an image properly, transparently! It will produce a classic image that is different from modern recent products, so I'm looking forward to it.

I plan to take it with me for my next shooting journey.

Stupid decision

As a matter for regret, my Golf 7 GTI was sold away a few hours ago. No damage was observed even small scratch, no history of repair except engine mount replacement and car battery. It was like new as to surpize the buyer. The value was about a quarter of my payment 11 years ago.

Then new commer tomorrow is New Civic with manual transmission.

My son will realize how stupid it will be to replace cars into more troublesome model?

 

Cataract surgery

I had my right eye operated yesterday, crystal tissue was replaced into artificial one. 2mm width surgical cutting on cornea was required to insert ultrasonic instrument insertion and that for artificial crystal material setting on the adequate place. It was done not under general anesthesia but local one, so all the steps were felt one by one---that was threatening at all. Though under anesthetic condition, I felt dull pain twice, on every instrument insertion. While the operation felt I extraordinary sparkling scenery that I have never experienced, ultimate highlight. After removing eye protecting gauge cover today, the scenery was dramatically changed like a new world---lighter, clear and transparent. Remembering my old good days about 30 years ago, I was so active in Radio control model airplane in F3A pattern field and I was selected as one of the representatives in Kansai area. The contest pattern is drawn at three positions, left, center and right, 120m distance with 120 angle degree area. Yes, I was not good at right side pattern. Now I have realized the reason why right side, lack of eyesight was the reason.
 

D-day tomorrow

 Cherry blossom season is closing in my garden this year, a bit earlier than the ordinary places. The period of time to be good for cherry is very short like sparkling, it's exactly the same as that of human being.

I'm going to have medical operation on my eye tomorrow because of tinting in the crystal tissue. Most of the cases are successfully done, so I'm heard, but I'm so threatened! I've never invaded by any artificial surgical operation except impacted third molar extractions. Remembering the saying by my aunt who went away tens year ago, "Any surgical operation whatever reason it might be is no good for sound body condition.".

As for myself, I'll accept any result if it the worst. It must be my own destiny. To tell the truth, I was introduced the practitioner by my intimate friend, who had been the representative of the optical division of a famous big hospital. Consequently, the eye doctor is well trained and skillful person.

Anyway, I will go to bed earlier than usual taking hypertensive drug and dropping antibiotics eye medicine.

Good luck to myself.

Old but useful

I happen to obtain two historical heritage, one is Leica M3 and another Nikon F2, both of them are vessels that reigned supreme during the golden age of silver halide film.

To tell the trueth, they had been desreted few years ago when I determined to change from analog to digital. It's true that I have been feeling some sadness on them.

It is the most unlikely that I would invite silver sal film from now, but the lenses for them could be utilized again on digital format and taste of them in good days could be done even now.

If asked which is the definer lens or digital sensor on the picture quqlity, I would like to reply "Lens" without hesitation. Lens design with some aberration has much to do with the quality of work.

Consequently, tasting the old lens's capability is one of the indispensable factor to enjoy my hobby life.

 

The importance of a work

It's getting warmer and warmer these days and cherry blossoms have started to bloom everywhere in Kansai area.

Those in my garden are not exception. So, I do not have any necessity to go about a specific famous places for cherry trees, but problem is nothing but the background in the picture. The value of the work is defined mainly by the background. But for visiting the flower and tree spot, we cannot shoot there with good back scenery. Without making journey, no difference is desirable, however hard we might feel to go out because of age, we should make a step. This is said to myself.

Newly developed lens or old one

Very individual opinion is allowed here, some old lenses has specific capability to resolve with atmospheric surrounding especially when utilized on old objects. This is why I often employ Leica or Leitz lenses produced half a century ago. My description doesn't always mean that old one is superior to newly computer designed sophisticated recent expensive ones for digital format. As for my selfish opinion, excellent datum on the correction of aberrations are not superior to Triplet in atmospheric resolution. Piled many glass layer for correction might do halm on the air condition how much correction might be desired. Consequently, my curiosity never turn to a newer heavy zoom lens at all. However smart it might be on the correction of errors, the performance never makes me turn on them. Also, Hi-zooming ratio cannot be an attractive factor. The higher the ratio of zooming, the less quality of the transparency becomes. 

The equipment has nothing to do with me geriatric, if it's weight exceeds 1 kg, camera body or lens cylinder. 

The weight of camera bag should be below 1.3 kg if they accompany with me.
 

Generation gap

10 years old GOLF 7 GTI is living with me in good spirit, no problem, very little operations on the Engine mount and transaxle mount were performed the other day. 

On the other hand, 50 years old and mischievous Quiff, Super Beetle 1302S stands on the opposite side with me in between.

Because of too hot weather condition and no air conditioning situation, my Super Beetle is made it a rule not to drive in a severe season for 2 months. So, 2 times on the way go and back to Kobe Road Transport Bealau, I could drive 1302S model with some fresh feeling and I found something unnatural while curvin in town speed---probably because of 20 degree rotational angle---steering reaction responds strange with drifting.

Steering idler arm hinge axis rod looseness and wear are suspitious---wear of plastic insert? Deeper investigation with disassembling on the point would be done in addition seeking the most adequate 20 degree rotation by adjusting front total toe value. Not a few muscle works are  waiting---she does not permit me free. She never assists me with any sophisticated mechanism such as power steering, power window, vacuum brake assist and pre-mentioned air-conditioning at all.

Hella H4 with position lamp was acceptable

Because of cold weather, rainy and unfavorable condition is lasting today. As I had cleared emission gas test, no anxiety existed, only the headlight Hi-beam axis and brake lamp were the title today to be re-checked by the Authority. Priorly adjustment by the professional dealer around the Kobe Land Transport Bureau was performed at 1,200 yen. Consequently, inspection was done so smooth and quickly with self-confidence. 

As for newly prepared VW genuine headlamp, Hella H4 with positioning lamp is not so popular even in Yahoo auction. I doubted some inconvenient problem such as light distribution or Hi and Lo relation to invite our safety standard regulation.

But the trial done actually today proved that my worrying was in vain. The position lam in Hella H4 is not wired, because it is already exist on the the top of the fender, no double wiring is forbidden legally.

Both Hi and Lo light is dark so much, so acceleration for motor rotation more than idling speed while being tested was required to compensate the distributed lower voltage. Over 50 years time passing must have caused the increase of resistor of wiring. Some countermeasure such as additioning a light relay and new wiring are in my mind for a long time.

It is said that the more difficult a child is to handle, the more cuter she is, and I completely agree with this opinion.

 

Consideration on Headlight axis

While driving after sunset, I have been suffering from the brilliancy by the opposing traffic. Because I have some inconvenience in my eyesight so believed for long time. But my thought was not always correct, but there is an apparent reason!

I come to know that the regulation of headlight axis was changed several times. According to my old memory, Hi-beam should downed at 30 m distance fairly. But now, Hi-beam must light up at 100m distance, how come?  Even Lo-beam 40 m! The concept of Hi-beam axis are completely different each other. This might be a part of the reason why I lost the legal inspection in Headlight light checking. 

Also, too much shinny opposing vehicles is not always my own eyesight problem but the legal standard has changed into higher axis adjustment.

Consequently, I have adjusted Hi-beam axis following new concept, though I have some confidenson my own adjustment, I'm dropping in pretesting dealer before coming to the Authority.

One more that I realized at the Kobe Land Transport Beaulow, before light axis inspection, an important physical effect was invited---yes, the idea of Thrust Angle that causes so to speak crab running sideway. Just counted as  an angle of lateral distribution, no investigation in axle alignment. Though Thrust Angle that is important checking title in the European Safety Standard that should be within plus minus 10 minutes angle value. As a matter of regret, our regulation does not have this title at all. One the other hand, the calibration of EPS center can adjust to make go straight at a moment, but illegal adjustment ignoring physical principle will not last so long.

Then as for break lump activation, the connections between plug and the wiring was not scerten---application of new socket with crimp connection solved the chronic problem.

As for combustion firing timing, one and a half hour driving showed relatively good and smooth rotation while acceleration at idling with ATDC 4 degree.This is the first time in this setting condition, so further investigation is required to obtain the most comfortable driving feeling, adequate vacuum angle advance and centrifugal mechanical effectiveness. The establishment of smooth transition and connections are the next task---very interesting don't you think? 

Headlight Hi-beam axis inspection

Very primitive mistake when I got the headlight Hi-beam inspection was doubted, remembering the moment later. I've ever heard about that blunder tens years ago. I must have done it against my intention. I'm filled with regret about that! I went passing through with Lo-beam on the checking line, how poor I was at all! It might sound excuse with shame, Hi-beam indicator light was failed, did not shine and I was at a loss. The reflected image on the testing device was the sign at that moment, and I chose Lo-beam twice.

Though I was occupied by my business yesterday, I'm completely free all day long today---I can spare my time fully on my Super Beetle.

Firstly, I must identify the Hi-beam indicator lamp in the round meter craster, removing it and destroy all the porcelain sealing material from the socket base. And putting a new different type of small 12V bulb for wiring with solder, put some amount of Plaster of Paris for holding glass tube. This un-straightforward method would be invited to fit with old style socket mount. Hi-beam indicator lamp activation is indispensable to be repaired first. Troublesome and complicated measure must be overcome at any rate. The Satan whispers behind my ears saying that through it away and sell it because I've done it enough, how come? Then I ask to myself, do I have another alternative way to spend some boring free time today? 

11AD Super Beetle---Inspection by the Authority

Yesterday, lost I the periodical inspection on my Super Beetle held at  Kobe Land Transport Bureau.

Because the motor did not start, I adjusted point gap unnecessarily leading change of combustion timing. Too much Hydrocarbon was contained in ex-gas as a matter of fact. Adjusting #1 spark timing at 4 degree ATDC, CO and HC barance was obtained. 

To tell the truth, '71 model was specially modified on combustion condition according to inviting Emission control, double rubber plates diaphragm vacuum leading angle for retarding firing timing at idle speed, very strange vacuum diaphragm module was equipped. Consequently, ATDC position was engraved on the crank pulley in addition to BTDC Zero degree marking. ATDC 4 degree is the most convenient firing angle position for AD motor produced in 1971, so tuned in the factory. So, it is a very natural story to have passed the inspection at that firing position setting.

As for emission control, I could attained after secondary trial yesterday.

Next is the break lump activation failure, I know this is because of valve socket connection problem caused by some Oxide film. Disassembling the bulb holder and wire blushing will revive the circuitry.

Third problem was caused by head light axis, a pair of headlight was replaced into genuine parts, Hella H4. I'm not good at this new light distribution, Hi & Lo, this is why I lost this inspection. Adjustment utilizing the machinery is required. 

2 problem in relation with headlight and brake light are remained and they should reconfirmed at the Authority within 2 weeks paying additional fee 1,800 yen!

It's not fun when things go smoothly. It's interesting to move forward while solving the problems that keep pestering myself. Exactly the same thing is said in my business and in my hobby, revalidation on the proposition that had been solved if it is difficult is not so charming for me, but a completely new field no researcher has passed through is just fassinating. Probably, most of the engineers in the research and development must have a same opinion as mentioned above.

Curiosity and interest are the indispensable energy to live in this world! 

Planetary alignment

From our standing point of view, Planets---Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune will make a line in addition it dupes New Moon alignment, on 28th February this year! It's a extraordinarily rare construction of layout at all. This construction repeats 4 times per 6,000 yeas. Consequently, it is the most unlikely for us to meet with this phenomena again.

Let's see what will happen in the dark sky, something different from ordinary condition? We can recognize the Planetary Feast with naked eyes if the cloud would not interfere.

Because we are connected in the Websites, this kind of important information comes into my LCD---thanks to the advancement of Scientific Astronomy.

Periodical Inspection by the Authority

As an elderly, I find vehicle inspection and maintenance to be a hassle and a chore. It's a real hassle, and my eyesight is also deteriorating.  So, my optical diagnosis would be done next week---probably, rotten crystal tissue on the right side eye would be replaced into artificial one.

Lack of concentration in anything recently must be brought by this criminal---reduced eyesight. Driving license instructor said that my eye's capability is the edge of limitation for licensure.

It took me all day long today to start 11AD 1600 cc Boxer motor in VW Super Beetle, it has been thrown away for a long period of time untouched. Firstly, starter motor does not work with no magnetic switch movement, no sound of magnetic activation and of course no pinion gear noise. Chrogged oil on magnetic switch sliding surface was the reason. Secondary, no first combustion was discerned, how come! After adjusting the point gap to 0.40 mm, TR Igniter was bypassed---no explosion! 

Remembering 2 years ago, exactly the same phenomena and situation I was at a loss. Investigation of fuel flow in fuel filter, no liquid was observed---Gasoline was drawn in it by sucking on the filter nozzle---the taste of special liquid was exactly the same as 2 years ago. Remember that the diaphragm mechanical pump does not work if it is not filled with liquid, so however consistently starter motor might rotated and push up the rubber diaphragm, gasoline would not be drawn into carburetor. This is why I did the same as before enduring bad tasting. 

In addition, slight idle screw adjustment was required to opening rotation. This is due to the iof motor oil. Temperature might rise up according to season trandision, then idle screw might be closed in a bit.

Pure mechanical old vehicle without any computer controlling requires some special keen skill to maintain with DIY. Once it fails, the reason and cause must be discerned, smelled and felt, why, where, what and how are requirement to be performed, just it might be difficult but interesting, this is why I'm keeping it in spite of geriatric.

When I was young, a skillful mechanic engineer said that Beetle would be a good item to keep all through my life. And I'm following his saying now. 

Who dictates the image quality?

One of the most favorite shooting equipment is Nex-5 with FE-24105. Though Nex-5 have been left untouched long time, some idea made me awake to revive it again. Critical disadvantage, lack of anti-camera shake function can be compensated by that inbeded in lens itself. And secondary, lack of view finder is done by magnifying back monitor.

The total weight comes up to below 1kg as a matter of fact.

Long like telephoto lens equipt, light weight and smart shape supply me good performance for actual use. Also FE-90mm Macro with similar weight useful with this light weight body.

Compsition, framing and focusing procedure while shooting could be done without any stress especially---weight.

It's sometimes fun to seek sophisticated newest camera equipments, but the performance of newly invented machine does not always conduct the work. Ultimate equipment do not always produce the excelent result.

The main factor to decide the work exist not outside but inside of the performer.

 

Old lenses---available?

As for Digital camera, the parallel flat plate made of crystal materials set between lens and image sensor is indispensable optical module to prevent false color occurrence. Also, it reproduces chronic aberration, chroma, astigma, choma and sphere.  So, old lens invitation on the Digital sensor frame is exposed to be harmed on the physical performance leading to reduction of lens performance. 

While it had been used in front of silver salt film, no interference existed, this is why the image quality is lowered no matter how any photographer might recognize or not. This phenomena should happens without any argument.

On the other hand, we can enjoy the performance of resolution of old good days, how come? 

The designing technology was great enough to eliminate such a ill-rumore? Or, the rate of this minus factor might be small enough to ignore the mischievous result. Anyway, I have no idea to give it up to invite old lenses on the image sensor. Anything is acceptable if the result is satisfiable.

Summitar's performance

Weather Forecast tells that cold temp would last all day long today, so better stay at home if we don't have some specific urgent business. More few days endurance is obliged to get outside for comfortable photo shooting.

A few days have past since I had obtained an old lens produced while WW2 in germany. This marble like equipment gives me an impression.

The light source through lens glass material just before WW2, 85 years ago arrives on the Image Sensor. And on the camera body Ⅲf, Leica DRP is clearly engraved. Deutsches Reichs Patentamt is the meaning. Actuall, it's older than myself, this lens must have arrived at our country passing through under the war fire and explosion, it is survived in front of me. This small goods must last for ever as a living witness of War.

Consulting Leica Lens book, glass coating technology had been invited on Summitar for the first time corresponding to the newly introduced color silver salt film. So, as the innate character of Summitar, not only monochrome film but also color film might be acceptable with enough capability. Actually, color resolution is remarkable at all. Color reproduction is not frivolous but calm and stable---that makes me so satisfied. 

Framework for OM-5

However hard I might look for the frame cage in the Web sites, I could not find out the item that is suitable for OM5. Smaller camera body is acceptable for all the photographers without exception. On the other hand, especially when tele lens is invited, too small and too light body is not always convenient. So to speak balanced holding is indispensable fitting on the palm and fingers.

Concequently, applied I the cage for Fuji-film XT-5 onto DS OM-5 with a small modification, just move the fixing hall anteriorly. All the function of the bottons and dials do not lose with this cage.

A big harvest by a cage on OM-5, now it is possible to grasp the lower part of camera body with a little finger as a matter of fact.

This advantage is so clear when 75~300 zoom lens is invited.

This handling effect makes me want to take pictures, which is very much appreciated. Small and light isn't always a good requirement.

 

New spring days

Unexpected warmer days are lasting since yesterday, it's like an early spring. Change of pressures causes such a remarkable thermal transition so incredibly. Probably, First Spring Wind must blew 3 days ago. Flowers preparing spring season must have frightened. Blooming timing would be enhanced this year. Early cherry blossom and plum will make haste to bloom.

Telephoto and Retrofocus

There is a term Tele-Photo Ratio in the lens design R/D field. It is a ratio that the length of the distance from the anterior surface to image sensor were divided by the actual lens focus distance. The smaller value than 1, the shorter the finished length would be. It must be a good Gospel for the most of the photographer who wanna carry less burdenning. But, things aren't going so well, such kind of modification in designing steps invite much discrepancy, difficulty in correction aberrations. As most of the buyers want to be free from inconvenience caused by the bulk, consumers want to buy smaller and cute one as the newer models. 

The engineers in R/D must have been obliged desperate effort by the thoughtless and unreasonable requests. When you violate basic principles, problems arise somewhere, and you have to somehow work around them, so unnecessarily. This results in compromises and compromises---leading becoming worse.

However louder the new announcement might be done in the Website, the newer model does not always overcome the performance of the old model in all the aspect. Consequently, photographers must be obliged to make good decision especially who have some strange desire in his or her deeper part of their heart.

One the other hand, same kind of phenomena is recognized on wide angle lenses. Frontal extension is done to compensate several aberrations, it is called as Retrofocus design. Increasing the glass reflective surfaces does not invite acceptable result, however coating technology might have made progress. 

Physical minus fuator never disappears. Fundamental principle cannot be ignored, otherwise unexpected failure might occur without an exception, no matter how someone notice or not.

In Scientific field, Data-backed results, not Emotion, are the priority.

(R/D: Research and Development)

Collapsible barrel lens

The closest distance is so designed at 1m on Leica old interchangeable lenses some of the later model was 0.7m. On the other hand, those for SLR body was so done at 45cm on standard lenses. Range finder construction had some disadvantage on close distance because of paralux and accuracy. This is why 1m closest distance was designed. Other rangefinder cameras were same as Leica.

I make it a rule to make this disadvantage into advantage without any irreversible modification, just an additive of an adequate extension tube. For example, Summitar extended 20 mm anteriorly could establish infinity focusing with its fuselage collapsed, without fuselage extension as normal use.

Then what will happen when the barrel was extended with extension tube? Yes, more close up shooting would be possible, 23cm distance like a macro lens!

As I show here, all the collapsible lenses could be utilized their performance shown here if an adequate length extension was applied, interesting don't you think?

Evaluation of old lenses

Whenever I come across with some reports or impressions on old lenses especially made by Ernst Leitz Solms GMBh, I mourn and lament. The condition of object are not always well settled and maintained, they were not estimated their original and innate capability and potentials. 

Mold and dust particles causing cloudiness and peeling of the edge lacquer can lead to poor image quality and the occurrence of flare and ghosting.

Consequently, we should restore them as original condition if we try to know their potentials fairly, of course the best care must be paied especially not to wipe out delicat and sbtle coating layer---difficult for layman.

The subtle differences in spherical aberration correction should be discussed under fair and correct establishment of any conditions. It is not an area that amateurs can easily enter.

Coldest season

Cold air pressure comes down from the Western Continent and cold weather are lasting in our country these days. On frozen road surface must be paid attention. Once start to slip all the vehicle fall into uncontrol.

My photo shooting hobby is inhibited this coldest season. Newly obtained equipment, Elmar 90mm/f4.0-Black lacquer painted no coating, Summitar 50mm/f2.0-square iris shape and M Rokkor 40mm/f2.0-similar with Summicron M 40mm/f2.0.

When it get warmer and the flowers bloom, things get busy. 

Amelioration of image quality-Summitar

Raised edge on edge painting causes reduction of resolution especially in lower frequency. Half a century after its production might such a change over time. Silver circle is observed the phenomena, just removing original painting without hesitation however looked no problem. New black painting will show you apparent improvement in image quality especially when iris is fully opened. Then a bad reputation because of Whitening image would be thoroughly wiped out as a matter of fact. 

Time to stand up

The existing old media, dominated by dirty money, will be driven out and wiped away by the new wave formed by the newly developed web. The distorted truth can no longer win, and in an instant, the disguise of a lie is exposed as the truth. No matter how many times a lie is announced so repeatedly, it will never turn into the truth. Not the difference of the way of expression nor that in how to receive, the Truth and the Fact are not movable. 

We Japanese people are not intentionally taught modern history, but here too there is an intention of foreign powers. It is not too late to start learning. Looking back at the past from the current situation, it is easy to understand the connection between the present and the past. We can see how we have been oppressed and exploited. It is well hidden and camouflaged as nothing.

When you watch variety shows that are easy on the brain, you will be brainwashed and become stupid without realizing it. Just stop it!

Unconscious brainwashing by instantaneous insertion images, so to speak Subliminal stimuli. Prayers, spells and hypnosis are no longer effective in the age of science.

It is important to gather information and make your own judgments. Money cannot turn a lie into a false truth. The Japanese have finally gone from being junior high school students to adults. They have grown smart and wise. We will no longer have our emotions manipulated by boring foreigners, whether East or West.

Strange and primitive religions will also disappear from our country. 

You have to decide yourself by yourself, for yourself and on yourself.

The time has come to establish ourselves without relying on external forces as before.

The right of self-determination is a priority for every nation. 

What we lost in recent lens technology?

Ernst Leitz Wetzlar Summitar 50mm/f2.0 and Elmar 90mm/f4.0 are the tool I would like to use for shooting on Nikon Z8 for the time being. Former has angled illis window and latter does no or slight coating on every glass element. Both of them have L39 screw mounting flange.

Summitar is a predecessor of famous Summicron because of its extraordinary performance in resolution. Less power of resolving is more moderate edge drawing leading to gentle line. More softer pics would be obtained as a matter of fact, probably because of residual Spherical aberration. Consequently, I dare chose Summitar than commonly prevailing one, both of them are designed similar with Gaussian symmetric with the iris brade between, also the fuselage construction with retractable are the same, so it's difficult to tell which is from a distance. The way of atmospheric resolutions are different each other, this is not a title which is the sharper.

As for Elmar 90mm/f4.0, earlier model, black painted, no coating and a bit heavier because of brass fuselage construction, has tasty character.Triplet design invited this Elmar has les inconvenient reflecting surfaces, 6 in total leading to more transparent resolution. I know that recent lenses are produced with multi-coating and more lens element to eliminate abberasins also aspherical element application. And eye-openingly clear and brilliant pictures are common especially corners. Complicated lens designing requires so sophisticated machining technology, lens element it self, lens case also does and increasing reflection surfaces also coating surfaces inviting resorption of light source, establishing the centricity of every element, precise matching and fitting between lens element and its case. Product quality must be checked so carefully on the way of production. 

From this point very selfish and self-contented opinion would be described, I feel that something is lost in the pics taken by such a recent lens designing---something important that should not be lost. It's a very difficult task to explain it in word, resolution of atmosphere, smell of air or temp and moisture, very small sound that is difficult to be discerned at that time. This tendency is discerned when monochrome method is invited for the works. This is why I prefer old less lens element design to new and modern computer done ones.

All the ancient lenses take good pics also newer ones, my opinion is just depending on the comfort level of ones Hobby.

Trifle is nothing but piled ones are not so but great.

The joy of life lies in noticing small, little and tiny things?  

Hankyu Awaji station

Hankyu Railroad Awaji station has been under reconstruction for long time. The date of completion also postponed several times, newest one is 2032, so announced. In 1960, the broad road plan was established from Toyosato to Utajima connecting Shin Osaka with Awaji. JR Osaka East Line has opened JR Awaji station already with the distance of 300 m from Hankyu leading to increase of passengers. So, I make it a rule to record old scenery meeting with the constructive step, before complete destruction. Newer construction is convenient of course, but old and historical memory is above all, losing good days is lonely.

Aibetsuriku

Shimenawa Kazari that has been decorated on the gate of entrances is burned in the Shrines nearby after the Oshogatsu season every year. Every family brings them and they are thrown into the fire, the warm is very convenient for the people came around. I happened to visit Tsukaguchi Shrine to buy a amulet bag for niece who comes back her mother country Peru. Departure for separation is brilliant but sorrow.  We call this kind of situation Aibetsuriku.

 

Ebessan

Top 3 person are celebrated as Fuku-Otoko(Lucky man) who passed through Nishinomiya Shrine on 10th January every year. So to speak Tohka-Ebis is based on the concept of thriving business, 15 hundred people gather together early in the morning running at Omote-mon to Honden with 230 m distance. Everyone knows it's nickname Ebessan.

 

Landing failure

A tragic plane crash occurred in South Korea at the end of the year, killing nearly 200 people.

During the landing phase, you must always face a headwind, lower the gear, activate the flaps and slats, raise the spoilers, raise the nose, slow down until you are almost at stall, and reverse thrust as soon as you touch down. Only by following these golden rules can a landing be successful.

Looking at the landing of the crashed plane, none of these steps were taken, there was residual fuel, and there was a pillbox-like cement structure on the extension of the runway. And then, engine stop, the tailwind landing approach, and a one-shot deal.

There were far too many conditions that could lead to a major accident.

We tend to fly for the simple reason that it saves time and is easy, but perhaps we need to reconsider the dangers of traveling by plane.

Once an airplane takes off, it must land, but the most dangerous phase is the landing phase. Life and death depend on whether it can land safely. A gamble on the cliff is always played on every flight.

There are many uncertain factors for failure, and they must all be eliminated. An airplane is a machine made up of tens of thousands of parts, and all of them must be functioning normally, but is that really the case? No, it can't be. It's statistically impossible. There must be some malfunction or problem somewhere. And yet the airplane takes off, pretending to be normal.

Needless to say, humans have not evolved to be able to fly. If you fall, you will die. This is for sure. You cannot stay in the air. Nevertheless, do you understand the reality that you are being thrown into the air in a closed space like an airplane cabin? Do you really mistake it for safety? Do you know that your feet are not on the ground touched?

If you encounter an airplane accident, you will almost certainly die. Is the need for life-risking air travel really necessary?

Wouldn't a boat or train work? Do you need to fly yourself in a hurry?

The smaller and lighter, the better

Brazen photographers tended to carry around bright, wide-range zoom lenses. If you didn't like zoom lenses, you had to carry around three types of lenses: wide-angle, standard telephoto, and short-focus. And you had to endure the torture of carrying heavy equipment.

However, with the release of camera bodies equipped with large APS-C-sized image sensors, this common sense is about to be overturned. The pioneer of this idea was Leica, a high-resolution, fixed-lens, high-pixel camera. Probably the Q series. In other words, the idea is that standard and telephoto can be covered, or can be covered, with digital zoom.

With the increase in pixel count of image sensors, the usefulness of digital zoom has come into the spotlight. This is not due to the simple and short-sighted idea that if you make it wide-angle, you can freely crop it on a PC LCD.

The concept of framing to determine the balance on a flat surface and framing to match the subject in three dimensions are fundamentally different.

In other words, this is why the image at the moment when the photographer's three-dimensional concept is incorporated is different from the image cropped on a computer.

Even if the number of pixels is reduced with digital zoom, the difference is clear on LCD.

The high pixel count of image sensors shows another side, leading to the promotion of high-performance wide-angle prime lenses.

This is not limited to the present, but for women and the elderly, it is better to have equipment that is even 1g lighter. It's a different story if you are in a state of madness that blindly believes in high image quality, but small and light is the most important and required thing from the bottom of our herat.

Professional photographers who work hard to endure heavy equipment should think the same way deep down.

So, the Konica EE Matic 42mm/f2.8. This is an original rotating helicoid transplanted to a micro 4/3 mount using a donor lens. It can get as close as 40cm, and the aperture can be adjusted with original blades.

If you remove unnecessary parts such as the lens shutter, it weighs 47 g and looks like this. The ultra-compact and lightweight 82mm/f2.8 lens with 3 groups and 3 elements can be transformed into any shape.

Using a computational photo system, high-resolution shooting is possible and the pixels can be increased several times.

We old-school photographers live in a world that was unimaginable in the days of silver halide film. It feels like we live in a dream world.