> ... it will be difficult and > expensive to beat Tech Pan if that is your standard. Yes. Along those lines, I'm trying to maximize the scanned quality of the closest alternative films to Tech Pan. Grain seems to be the hardest TP quality to match. In enlarging, a diffusion enlarger was generally felt to hide the grain better than a condenser (or worse, point source) enlarger. Some have claimed there is a similar effect in scanning. So, the question is, will a diffusion screen in the light path of a Nikon 8000 tend to hike film grain. I tried a standard Kodak diffusion sheet, but it may have been too course. It at best did nothing. In that past, when I've needed a high resolution substitute view screen for a camera I've found frosted adhesive tape on glass makes an excellent view screen. It has a very fine frosting on it. With a piece of tape over the glass carrier, I may be seeing the effect of reducing the grain. However, the tape itself and how it adheres to a surface is too uneven to be sure. Further experiments along these lines is definitely warranted. So ... Question: is there a source of super-fine-grained diffusion sheets that might be tested for this application? Paul www.PaulRoark.com
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Diffusion sheet in scanner (was Re: 40" Print, How many Megapixels?)
2005-12-23 by Paul Roark
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