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Author Message   Scott Tinkerer Username: Scott Post Number: 69 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Monday, January 25, 2010 - 12:25 am:    Thanks, guys! I appreciate the input. I think if I wanted to take photos of the moon, or landscapes, skylines, etc. then I would definitely want to make sure that the images at the ground glass and film plane were identical at infinity. I think I would rather make sure that the taking and viewing lenses are focusing equally at relatively close distances. In my own experience, at least, there is always going to be a considerable focus error; if I set a lens at infinity, then I see a focus error at close distances. If I set a lens at a relatively close distance, then the error will be at 'infinity'. I want to use this camera for protraits, so I would rather the error be at the 'infinity' end of the scale, rather than at the 'close' end. It might be picky, but I want to be sure that what I am seeing on the ground glass is the same image that is at the film plane-- at the distances at which I expect to be using the camera most...even if I have to 'hack' it somehow.