scanner problems, Minolta Dimage Scan Dual III

Discussion in 'Minolta' started by Scott, Nov 27, 2003.

  1. Scott

    Scott Guest

    Howdy,

    Hopefully someone who isn't stuffed with turkey can help me out here.
    Bought the Minolta scanner, set up without a hitch. Scanned some negs; but
    in Photoshop (7) at 100%, there is a pixelization, or to be more
    descriptive, an unblended look among the colors, like when viewing a jpg set
    to a low resolution. The problem is that the scans were made at full (2800
    or so dpi), with the multipass scan set to 8, pixel polish and dust brush
    on. Yes the scan took quite a while.

    Am I missing something? I compared this scan (30meg) to a 2 meg dig
    photo from a 5 megapixel camera. The dig photo was not as sharp in some
    areas, but at full mag it was clear as a bell. Too little info on my neg
    scan, too much?

    Any help would be appreciated; the pics taken with the digital camera
    also have this at full mag, but this is a 2 meg file vs a 30meg. Ideas? Am
    I completely unaware of some basic fact? If so, I apologize for asking the
    'obvious' and hope someone will explain this effect.

    Thanks,
    Scott
     
    Scott, Nov 27, 2003
    #1
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  2. Scott

    Jim Townsend Guest

    You scanned a 36mm (1.4173 inch) x 24mm (.9449 inch) image at 2800 DPI.. So
    multiplying the dimensions in inches x 2800 DPI, you should have gotten a file
    that was around 3968 x 2645 pixels..

    Multiplying 3968 x 2645, you get a total of 10.495 million pixels in the file.
    That's about a 10.5 megapixel file.. At 3 bits per pixel, you should have a
    31.5 MB TIFF. That all sounds normal.

    But.. If you're seeing banding in solid color areas (sky) rather than gradual
    transitions.. It sounds like you're scanning at a low color resolution. Do
    you have a color depth setting in your scanner software ? If you do, upping
    that will probably help.
     
    Jim Townsend, Nov 27, 2003
    #2
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  3. Scott

    Vin Guest

    Hi,

    I have a SDIII, maybe your problem is the pixel polish and dust brush.
    Things that correct and remove dust by software seem to make pictures
    soft and pastel like(cartoon like?). I always scan 16bit, so those
    options are not available. I use Manaul Exposure for slides and
    Auto on Negatives. When I do the preview, if any of the negatives
    dont look exposed right, I use the exposure compensataion. Try
    auto-focusing the lens as well.

    If you want to remove dust later, try the polaroid dsr with a history
    brush. Its free.

    Vin
     
    Vin, Nov 27, 2003
    #3
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