Converter for some lenses and cameras

Theory of lens conversion

After years of photography, and the purchase of analog cameras and different lenses, I should used these parts for digital cameras. A few years ago, I saw someone on the site, had been used from this converters. Of course, I saw many comments about the use of analog lenses on digital cameras. And finally I decided to make this converters for my analog lenses. Most important issue that should be considered for these parts, is the camera flange-focal distance. This value, is distance from the outer lens mount of camera, to surface of sensor or film.

The following table shows the flange–focal distance some cameras.

Selecting the appropriate conversion

Thus, for lenses that This distance is longer than the body, can be used for this converters. For example, this value is 46.5 mm for Nikon lenses. So it could be used, for Canon bodies where this distance is the 44 mm. After reviewing and comparing different bodies and lenses available, Canon body was the best camera for my lenses. Accordingly, I designed and made ​​the following converters.

But for some lenses, which have a similar flanges-focal distance with canon body, I opened the lens mount, and built a new mount on the camera body for that. For example, i designed and make practika B mount lenses for Canon. For Canon FD lenses, which need to change their mount, design process is not ended yet.

When using this converters, all camera and lens connectors, is cut. Thus all steps shooting must be manually. This pieces are made completely of aluminum alloy metal. That after the precision machining, anodizing with black anti-reflection coating has been done on them.