Almost seems like a modular design where you could trade out the front element section for a different one. I know they did something like that on...
I followed the process from the translated link I shared above, and it was super simple and easy to reattach the washer and metal plate that was...
So I think I may have found my easy answer... I was hoping this type of disassembly was possible:...
Thanks Craig! So I actually got the focus mechanism free again... and discovered what the issue has been. Looking in the lens from the front,...
Thanks, I'm leaning towards that being the case (needing cleaned/repaired internally). I did look at the PDFs from butkus.org, but they are pretty...
So, my recently acquired FD 400/2.8L's focus ring is stuck. Prior to this happening, there were a couple spots (150ft, and one closer to infinity)...
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