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In article <3D0424F6.921929ED@worldnet.att.net>, Phil.Lippincott <firstname.lastname@example.org> writes >Hi Kennedy > As I previously mentioned Ektachrome E100SV has grain that can be >optically scanned at 8000 dpi without a problem. I believe all of the newest >formulation films from Kodak and Fuji may use the newer "T structure" or >similar random grain technology to that patented by Agfa a few years ago. >Kodak has had a number of new patents approved also for new dye formulations >that are better suited for scanning. This is where Portra came from VPS >also. In my testing of scanners no scanner has had an optical visible >resolution better than 8000 dpi equivalent. Most 5600 optical specified >scanners really have 3500 or less. The CCD scanners lack of quality gives >people the perception that this all the film has but it's not true. Most >film is better than most scanners and most professional scanners are better >than digi cams. Also slow scan scan backs are nothing more than relocatible >small CCD scanners themselves. > Phil, what you are confirming is that your 150in print is far from perfect, although it may indeed be as good as any chemically produced print of the same size. Your original statement claimed a grain free image, now you are suggesting that the grain is optically scanned - which means, as I suspected, that you are scanning well beyond the resolution capability of the image. The fact remains that the film does not have enough resolution (and neither do most optics) to produce a 100x magnification without the resolution limitations being visible to the naked eye. Furthermore, a 150in print from an 8000ppi scan results in a pixel resolution on paper which is easily visible. Although filtering at the printer may avoid pixelation itself, even a perfectly sharp original would be visible less than sharp when printed at that resolution - and you don't have a perfectly sharp original. As I said before, your 150in print may well look impressive, but it cannot be perfect and, for example, comparison with a similar sized print from a larger format source would knock spots off it in the resolution stakes. -- Kennedy Yes, Socrates himself is particularly missed; A lovely little thinker, but a bugger when he's pissed. Python Philosophers - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.