Recent content by miki11

My lens causes the mirror in the OM-2N to jam. The reason for this is that the aperture mechanism is quite rough. I removed the bayonet mount and the ring with the aperture values printed on it. Unfortunately, I got stuck on the last ring (marked with red arrows), and despite unscrewing the four...

I think the same way as you :smile:

I have finished polishing one side of the lens. The process took around 60–70 minutes and the artefact was difficult to remove. Here is the whole front optical block (with the polished lens). Now I need to finish the mechanical servicing, assemble everything and perform tests.

I managed (in the meantime) to regenerate the elements responsible for the longitudinal and transverse slack in the zoom structure. Now I have to polish the defective surface of the lens (cerium dioxide [IV]). By the way, I have two questions. - Is there a service manual available for this...

I am aware that it is easier to treat a patient when they come to see the doctor in person. These distinctive “combs” resemble parallel lines rather than fingerprints. We have had holidays and family gatherings here over the last few days, but now I will slowly start doing something. First, I...

Okay, I've found the answer. For future reference: both lenses should be inserted with the convex side facing down.

Today, to relax, I decided to clean the optical path of this angle finder from dust and individual mold spots. A diagram with a list of components is available on the Internet. I disassembled the components shown in the diagram. Component CB075500, containing 3 lenses, is responsible for...

Thank you for all your kind words. I have already found the service sub-forum and written my first technical post.

Yes, this is that excellent Canon lens. It is precisely because of its legendary status that I decided to use every means at my disposal to slowly restore it to full functionality. It's not about performance compared to today's designs. I just want to bring it back to life. The rattling problem...

I have a Canon FD 35-70 SSC lens on my table. The problem is that the zoom mechanism rollers are damaged and one lens is dirty. Specifically, it is the last lens of the front optical block. There is fogging inside, and I cannot unscrew the rear ring (applying a minimal amount of acetone to the...

Hello everyone on this forum. I am passionate about photography, recently mainly analog photography. As a hobby, I also try to repair some simple lenses. I would like to ask if there is a service group on Photrio? Best regards, Miki.