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Recent Posts
Tag Archives: blades
How to fix Helios 81H or Helios 81M stuck aperture blades
pay per click advertising Detailed instructions about how to disassemble, repair and assemble Helios 81M or Helios 81H lens. Very often aperture is stuck wide open and won’t close bec…
Aperture blades not moving?
Question by David: Aperture blades not moving? I have a Canon FD 50mm 1:1.8 on my Canon AE-1 Program. when I removed the lens and adjusted the aperture, the blades didn’t move at all. I also looked from the front … Continue reading