Industar 22 / FED Lens Teardown and Zorki 4 Introduction

This video is aimed at illustrating the mechanical design of the Industar 22 lens as well as giving a brief introduction to the Zorki 4 rangefinder camera. Here I strip down the lens, quickly clean the lens elements, and grease the helicoid.
The disassembly and assembly techniques should not be taken as best practice.

[@edward_grabczewski]

Nice video. Many thanks for this very useful demo. In the video, at 13:31 your diagram states it's a "Cooke triplet", but the Cooke Triplet contains only three elements, not four as in the Industar-22. I'd love to see a similar breakdown of the Industar-10, since it's almost impossible to find a definitive diagram of the optical design, and there's some misinformation about where the lens aperture sits.

[@philhodgkinson1460]

It is a tessar design with 4 lenses in three groups....
The original triplet was designed by a guy from York England many years ago......

[@lennetornqvist]

Informative and well made tear down! There is a huge interest in these old CCCP lenses all over the world. Checking out info about my FED10 lens was how I found your channel, so now you have an idea :) Keep them coming!

[@philhodgkinson1460]

Good video which I will keep.....

[@philhodgkinson1460]

I have that same Zorki 4 with russian txt on it (cycrllic) my one like that dosent work... but I have 2 other Zorki 4's

[@ArminHirmer]

interesting. Could one polish the lens elements by themselves?

[@parkermusselman9824]

You could... at the least you would remove the coating. This is not something you would want to free hand. Creating a tool would be required to keep the form of the lens. Pitch is a common material to make a lap from the lens itself.
Check out th-cam.com/users/HuygensOptics for the process.

[@tekoppentekoppen761]

Will this lens fit a FED2?

[@parkermusselman9824]

Yup, both M39 / LTM mount.

[@maxgrau9083]

Cool stuff is this adaptable to F Mount nikon As ?

[@parkermusselman9824]

Tons of LTM/M39 to F Mount adapters out there.

[@vladnickul]

what a hack :(