Somewhere, I read that something over 4000 DPI is the max usable without introducing bogus information. This is sort of verified by a tech at the local camera shop that said that his Nikon 5000?? would pick up grain and flaws in the film itself at max resolutions.:bang:
Someone online did what I considered to be a rather extensive test with both desktop film scanners and drum scanners, and concluded that, regarding the finest-grain 35mm film, properly exposed (in a camera mounted on a
rigid tripod), the point of diminishing returns, resolution-wise, was about 6000dpi (ppi). This, of course, assumes
optimum photographic conditions, which is certainly not how most people work with 35mm, a medium which is more about spontaneity than tripod-mounted exactitude (though it can do that if desired...that's what I love about it).
Most 35mm exposures can be done justice to with a 4000dpi film scanner. This didn't stop me from running out and buying a Minolta 5400 not long after it came on the market. After four years and a goodly number of film scans, I regard it as a great investment. As far as buying used, I helped a client buy a used 5400 II (second version, with Nikon-style LEDs vs. the original 5400's fluorescent tube (which I prefer overall) via That Auction Site. No problems at all, but it helps to ask questions before laying your money down.
If you insist on buying new, Nikon's 5000 is the only game in town, IMO.
- Barrett