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Neuberger
Tinkerer
Username: Neuberger

Post Number: 49
Registered: 01-2010

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Votes: 0

Posted on Tuesday, June 21, 2011 - 08:11 am:   

Try #1 after softening the lacquer wit a wee bit (!) of acetone, that one gives the mirror the correct vertical tilt; usually only minor correction is necessary.
For your aperture problem study this link's info http://kanscamera.sakura.ne.jp/hp7/html/p93.html.
The small spring you can see is of vital importance. Often it is unhooked or gone. I guess the aperture blades are also gummed up and need cleaning. Unfortunately they are quite close (behind, seen from the front) to the shutter blades, so any cleaning will take influence on both sets of blades, the whole operation is time consuming and one can never be sure if any positive result is long lasting.

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