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Author Message   Aphototaker Tinkerer Username: Aphototaker Post Number: 175 Registered: 12-2009 Rating: N/A Votes: 0 Posted on Wednesday, March 31, 2010 - 02:16 pm:    Yes, I was supposing that as well. My only concern was that the scale appears to be non-linear with respect to the true-vs-displayed distance. I was not sure if that is usual or acceptable.