Minolta Auto Rokkor-PF 55mm f1.8 Disassembly and Diaphragm Cleaning
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- Опубліковано 8 вер 2024
- Full disassembly and reassembly of a Minolta Auto Rokkor-PF 55mm f1.8 lens. Lens is disassembled to access all body sections, optics, and mechanical components individually. The diaphragm is also disassembled, cleaned, and put back together.
This is one of the earlier Minolta lenses and very different internally from the 55mm f1.7 MC Rokkor. It is also a very repairable lens, since it uses all metal components and all components can be full disassembled and repaired easily. The downside is that there are many more components than with the MC lenses, and accessing them is not always easy. Zeroing the lens is also a bit odd since you do not have the same fine control as you do on MC Rokkors.
Minolta Auto Rokkor-PF 55mm f2 (AR-C) Lens Disassembly: • Minolta Auto Rokkor-PF...
Complete time of video was around one hour and twenty minutes.
photography.mat...
Thank you. I would never have been able to repair my lens without this video.
Thank you for this very thorough video! However a word of warning regarding the focus ring, maybe it's my inexperience but it was a big pain to get it right it. Took me several attempts to get the focusing correct to infinity.
Very nice, thanks. I followed along, well, mostly... skipped the aperture disassembly as I just wanted to re-lube the focusing and clean the blades, and this was a great help!
Great useful vid, man you are confident with all those bits.. I just got one of these lenses same issue with the diaphragm not operating cleanly.
Thank you, this was helpful!
Thank you! Very informative.
Hi Matt, if I may, I want to ask you another question because I also have this pair.
I have this exact lens and I use it on my Minolta SRT 101. But just this morning, I realized that somehow the aperture on the lens didn't connect with the body. Thus, the lightmeter didn't respond to the change of the aperture.
What do you think causes this? Is it something inside the aperture of the lens?
Minolta Auto-Rokkors were released in 1958-1959 for the Minolta SR-2 and SR-1 cameras, before MC Rokkor lenses (for the SRT-101 in 1966). MC (Meter Coupled) lenses have a tab on the aperture ring that engages with a moving follower behind the lens mount on later Minolta cameras like yours. You can use either MC (or later MD) lenses on your SRT-101 to make your SRT-101 metering system operational.
Hi Matt,
thank you for uploading all the videos.
I've got a problem with my Minolta Auto Tele Rokkor QE 100 3.5, the focus ring is quite stiff. It feels like grain of sand in the threads of the focus mechanism.
But I have idea how to take this lens apart.
It is the first incarnation of Auto Rokkor lenses - called AR-I.
Can you help me with that?
Nice tutorial do you have tutorial for canon lens fd 50mm f1.8
I have effectively the same lens, but from the AR-II generation. The retaining clip at the back of the diaphragm has shorn off, and I'm looking to take it apart to remove and replace the snapped screws. Do you know how different the process might be? I'd rather not break anything.
what does the side lever thingy do?
It closes the lens aperture for a depth-of-field preview. Later Minolta cameras had a button on the camera body to do this.
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