I have a Sprintscan 45 Ultra (two, in fact). I just built a Win 7 64bit workstation, and was pleased to find Vuescan has 64 bit version for the Sprintscan. Problem is, with Vuescan I have lines in the highlights that I thus far thought meant Vuescan was worthless, as I get good scans (no lines) using the old Polacolor Insight software on Win XP 32bit. Then I found info. in the following thread that points out Vuescan does not take into account calibration the way the original Polaroid software does, resulting in the lines:
(a few posts down, by Thilo Schmid, whom I have messaged as well)
So, the source of the lines was great to learn. It's a problem with Vuescan. Obviously I can continue to use my scanner (excellent scans) with Win XP 32bit, but in the thread above, Thilo Schmid makes note of making a Photoshop mask by scanning a blank piece of film that can be used to eliminate the lines? Anyone ever done this? Doesn't seem like it would completely eliminate the lines without losing some info. from the scan, but that's why I'm looking for help. Anyone know how to do this? Scan a piece of clear neg film? A solid black trans? Then what?
Would be great if Vuescan would address this issue of lines in highlights on the Sprintscan 45 Ultra, as if they do not, they really should remove the Polaroid Sprintscan 45 Ultra from the Vuescan supported scanners list, as the lines in highlights make Vuescan worthless for use with the Sprintscan 45 Ultra for now.
And advice on scanning the blank film to make a mask is appreciated. A lot of my scans are repro of artwork, so it can't be "close," the method has to be completely seamless eliminating the lines or I will just have to stick with dual-booting into XP 32bit when I need to scan. Not the end of the world, but if I can make Vuescan workable with this scanner without too much trouble, I would like to give it a shot.