george_andrews Posted October 21, 2016 Share Posted October 21, 2016 <p>Hi thanks for the FD forum. I acquired an FD 300mm F4L and the rear mount was disassembled but intact. I see how it fits together as I have other nFD lenses to look at, but how the two long aperture arms install, I am at a loss, if someone has pictures or a video of intsalling the two arms I would greatly appreciate so I can control the aperture.</p> Link to comment Share on other sites More sharing options...
mwmcbroom Posted October 21, 2016 Share Posted October 21, 2016 <p>I've never disassmbled the 300/4L, but it seems like every lens is different from every other. When I've run into lenses that have long lever arms like what you're describing, I've found it to be just a bunch of trial and error. Unfortunately.</p> Link to comment Share on other sites More sharing options...
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