tor kviljo
17-Feb-2005, 02:21
I have a Polaroid Sprintscan that I use for MF & 4"x5". It is fast & easy to work with, but it does give banding in direction of travel in very dark areas of the image (typical shadow-areas, dense trannies). Last week I removed the main cover, cleaned the light-source, the main surface-silvered mirror & the ajacent glass rod (which is used for guiding light for calibrating I assume?). Same scanning-result. Then opened up imager-unit & viped the surface of the CCD censor + peered through lens to chech that it were all clean. No better images. Finally disconnected the other SCSI units on the chain, running the Sprintscan as the only SCSI unit & with a pass-through type scsi terminator. Still banding apparent. No difference in banding when swiching from 2000 (max. opt. res.) to 1000 dpi. Scanner-is connected to a PC running win 98SE. I scan using Polaroid Insight software (I don't have the dongle for the Binuscan software which also came with the scanner, so I don't manage to test with this software, even if I belive it could be made to run as plug in in PS 7 without dongle (any thoughts?)). Images is better if I swich off auto exposure and lighten the image using curves in PS7 instead, but this is not a perfect solution. Anyone have ideas on how to solve this?. I hope to have a scanview scanner up & working within soon, but I would like to continue to use the sprintscan as fast scanner for images where max- resolution is not needed, so I would very much like to fix this problem, as many of my trannies inklude very dark areas.