As the title says: I have banding problems on a LS4000. A picture is worth a thousand words, so here are two thousand words:
<http://www.f.b.clara.net/350-22_001.jpg> <http://www.f.b.clara.net/350-22_001_x3.jpg> (the latter is a 300% blowup of the bottom left area) This only occurred on one frame, but it was a weird one: The thumbnail came out OK (I had auto-exposure and auto focus, but no ICE). The preview was unusual: the black area outside the frame -- the orange mask of the negative, normally around 0 -- was in fact mid-gray (137 to be precise). No amount of tweaking did anything to help. This is a dense frame, admittedly (shot at +1 IL), but no more than the rest of the film. As a result, I had to severely adjust the histogram. I left the RGB curves alone and simply got the luminosity black point around 100-ish This produced a horribly grainy image so I scanned in 14 bits using 8 passes to smooth the grain (plus the usual ICE for dust & scratches). I don't know what caused the banding as it is not apparent on any other picture (where I used ICE for dust only, and scanned in 8 bit single pass, adjusting the black point on the luminosity curve around 14-18 as usual). Is it the 8-pass scan, or the unusually strong luminosity adjustment? If the latter, what could I have done to get black instead of a mid-grey for the shadows? Regards, Francis ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
