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Old 01-14-2020   #72
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wpb is offline
Join Date: Apr 2005
Posts: 213
I started with that Vivitar enlarger in 1985. Do not do split printing and use the filter holder above the lens, it always seemed to loose sharpness that way. Much better results were obtained just holding the filter(s) below the lens. As an aside; if you take an unexposed and developed strip of film and make very fine marks on it with a needle or pin vertically and horizontally in a checkerboard pattern you can test it very easily for proper alignment. You can either check it with grain focuser or make a print and inspect.
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