Lens Design

Technology in photographic field has completely changed in these ten years, professional printing fields also.

The image quality is dictated by the lens used, this principle is not changed even now, in digitalized generation. So the best corrected on aberrations one becomes bigger and heavier in lens element's design. My favorite Leitz Apo-Telyt-R 2,8/280 weighs 3700gram on earth! I've been using this equipment heavier than US M16 Rifle(3,000gram).

Now I know that the sofisticated computerized lens design has made it possible far smaller and far lighter, in aberrations correction utilizing some enginering plastic molding of aspherical lenses.

This technology has been obtained by Panasonic company, but now it's patent may be opened, like ancient Gaussian design for standard focal length.

It's absolutely true that the technology must have contributed in the lens designing field.

Photo shows some relics in the past silver salt generation.

Leica M3 single stroke with M-Summicron f2 second generation is shown on the left side.

Disassembling and overhauling this Leica M3 is the long term dream for 30 years as in my favorite condition, including even distance measurement device inside. Few years ago I made it possible to produce special tool with self-curing acrylic resin material. The task takes all day long from disassembling to final distance measurement device adjusting and checking,

Very accurate distance gauge is the vest advantage for M3, but hung on a second here.

The focal length changes according to the F value positioned at that time, slightly but differs, knowing this fact on the sweetest point the gauge is adjusted at F4,0 with the linearity of proposition.