Ancestral tomb

In spite of hottest season these days, I visited my ancestral tomb today before noon at Shitaderamachi around Nipponbashi. Pics shown are taken at Temma-Tenjin at Minamimorimachi. After this affair, we came to Osaka Imperial Hotel for lunch, celebrating my elder sister's 74th birthday, Chines Dishes served there were all well designed and seasoned.

Completed Minolta Rokkor TC 100/4

Taking relatively long time to re-set 13 iris blade in the adequate position, finally I have succeeded in completing fairly well. Though the construction of this old Minolta lens is merely Triplet with less correction of aberrations, less grass materials and less number of reflective surfaces make the light signal easy to arrive at the imaging surface, leading to purely transparent and clean pics. Clean and transparent light source or well corrected light signal by sophisticated computer analysis, which is the better on Earth? Old lenses have some disadvantage compared with recent designed and expensive ones, less picture quality when used at iris fully opened position, flare, halo and ghost are the criminals. On the other hand, such kind of disadvantages might be utilized intentionally, as some specific Physical properties those are not contained in recent ones. Shortage might be changed into specific advantage, depending on the intentions of photographers.

Minolta Rokkor TC 100/4

So pretty lens for mountain climbing use Rokkor TC 100/4 Triplet was obtained at 1,000 yen. Because of the oil invasion into iris blades, the function was lost in addition to moderate mold development as usual. As for external appearance, no hitting, no scratches and no parts loosing, with genuine hood was good gospel this time. After removing sticky oil on the every iris blade, complicated like puzzling procedure is waiting, reassembling them firmly at an adequate position with keeping precise opening rate according to an original marking on the fuselage, now I'm on the way to complete it killing free and boring time. Before that, lens surfaces are kept clean and transparent utmost by my  desperate efforts.

Minolta MD Zoom 35-70 on SONY Alpha 7

Very smart, cute and old standard zoom lens designed by Ernst Leitz Co. and manufactured by Minolta is at hand equipped on Sony Alpha 7 digital format. Judging from the reports, the performance is superb though with less magnification, zooming ratio to double and slight spindle shape distortion. Remembering my desire for actual using focus length, the range is enough. There exists some difficulty while SLRD period because of Minolta's 43.5 mm, shorter flange back length, but now is the paradise period for any old lenses with some smaller lens back and flange back, yes, mirror box length has reduced with sophisticated recently established EVF technology. Next weapon to be enjoyed is this pretty one, reporting later.

Minolta MD Zoom 100-300/5.6 cleaning

 Not so busy but not so free condition while Bon-holidays made me determine to disassemble the lens unit thoroughly in Minolta MD Zoom Rokkor 100-300/5.6 into the depth of zooming lens unit inside. Though the performance had been recovered enough by cleaning front and rear unit to satisfy my requirement under the condition of Photoshop application program, very slight mist in the zooming unit that could not be cleaned until disassembled completely was there. After some interval to be at a loss which way to choose do or not do, I came to the conclusion to proceed the way however difficult and however much barrier might exist on the way. I have realized after doing that the number of constructive parts are not so many and relatively easy to reassemble with precise optical adjustments such as iris closing position and final infinity position, boring time today will be killed by this complicated reassembling procedure of this Minolta Zoom lens.

Iga Ueno Castle after Rainfall

I visited Iga-Ueno to shoot photos from Ueno-Castle place, just immediately after rainfall and fine cremate with some mist in the mountain. Though I could meet with the specific timing, the result was not so favorable, an old Minolta TC-Rokkor 135/4 triplet tele-photo lens was invited for the purpose in addition, Minolta MC-Rokkor-PG 50/1.4 was accompanied together for ordinary use. As the reviews say the performance of latter lens is superb with no way to complaint. To tell the truth, not a few old silver salt period lenses have been thrown away for long time, just prepared not tested and not used at all, I must oblige myself use them at any rate, once they had been prepared to be used and tested for myself and by myself, over 20 in number are waiting for my determination.

Rubicon 2 dr front lower arm extension

Lack of steering stability while straight running in Rubicon obliged my son replace front lower arm into 1 cm longer one in order to increase caster action. Now he is in test running, but remember here not only caster angle but also camber and toe-in values will be changed at the same time together if only lower arm length is extended. Let's see what will happen, though I'm afraid of getting himself into deep darkness, because he is not an experienced engineer to belong with some researching and developing division of the constructor. As for my opinion, he should not be suffered from product imperfections, he should enjoy his own life by utilizing Rubicon instead. I hope his effort will not become in vain.