Tag Archives: Helios

How to fix Helios 81H or Helios 81M stuck aperture blades

Posted on January 7, 2015 by ShutterBug

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…

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Posted in What Is Aperture | Tagged , , , | 3 Comments