> From: Bob Shomler <[EMAIL PROTECTED]>
> ----------------------------------------
...
> Vuescan is, as you have written, designed to get all that the scanner can get from
>film. Default black and white point settings extend far wider than you might want in
>a final image. Changing Vuescan's color white and black point percents can help
>here. However having Vuescan save 48-bit mode tiff and making these adjustments in
>Photoshop 16-bit mode is preferred by many. (This is what I do with my LS-30 scans.)
I am saving B&W images as 16bit tiff gray scale. Should these be
saved as 48bit ?
>
> If you're using 7.5 (beta or no point release) you need to get a newer release.
>Some significant "dull image" problems were fixed in 7.5.2. If you're at 7.5.11 or
>later you're probably OK, otherwise download the latest (7.5.22).
Thanks much for the hint; 7.5.14 seems to do much better !
> Set Device->Option Types to advanced to see many of the controls, such as for
>exposure (which will be found in the device tab).
>
> Also check out the Advanced Workflow Suggestions in the Vuescan help file.
...
Is there also a manual exposure control (similar to Analog Gain under
NS ?) What is the auto-exposure algorithm being used and, other than
the whitepoint/blackpoint selection which essentially clips/stretches
the tonal range, how does one adjust ("center") the exposure to match
the mid point of the density distribution of the film durin the scan ?
Thanks,
Sassan.
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