@bambuk 8 April 2021 more from that month

TALON1: 2.9 / 85 - Bamboo-2 (B-2) B-2 - that's how I named my homemade product. The original lens was a TALON1: 2.9 / 85 lens from some old slide projector .. The lens consists of a threaded tube (helicoid) and two lenses inside. I adjusted the diameter of the lens to the diameter of the plastic plumbing pipe. The pipe moving along the pipe made it possible to change the focal length. The length of the pipe was selected empirically. The plastic pipe is mounted on a 4 mm extension ring (M-42) and screwed into an M42-NEX adapter. This was the initial version. I could focus, but there was no aperture. At the next stage, I disassembled the Industar-26M lens and pulled out the diaphragm. It fits through the O-ring at the back of the B-2. Thus, I got a full-fledged lens with adjustable focal length and aperture. In order not to embarrass anyone, I pasted over the plastic pipe with black leather. It is more pleasant for the hand and for the eye. And in the cold, additional protection for plastic. You can read more about this process in [the first](https://hive.blog/doityourself/@bambuka/retrofit-talon1-2-9-85-bamboo-2) and [second](https://hive.blog/photography/@Bambuka/The-Upgrade-V-2) My posts. But in principle, the process I have already described. #PhotographersOnNoiseCash