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Author Message   Olympfix Tinkerer Username: Olympfix Post Number: 34 Registered: 05-2009 Rating: N/A Votes: 0 Posted on Saturday, October 30, 2010 - 11:21 pm:    What is the problem-- ? do the images coincide at infinity? Are they aligned vertically? -two different problems... Does the camera take sharp photos at f2.8 at infinity? i.e. is the lens collimated accurately. ? horizontal mis-alignment is easy- through the hole after the screw in the film plane is removed... vertical mis-alignment requires top removal.