User`s guide

INDEX
51
There are two lists of media, depending on whether you're scanning paper (reflective
media) or film (transmissive media).
Reflective media
When scanning paper, Input | Media (p. 50) is used to control whether the final image is
color or black/white, continuous tone (photo), or bi-level (line art or text).
When Filter | Descreen (p. 71) is set, a descreen filter will be applied. You can control
the strength of the descreen filter with the Filter | Descreen dpi (p. 71) option.
Transmissive media
When scanning film, this option indicates whether you're using positive film (i.e. slides),
color negative, or black/white negative film. This option causes the default film type to
be changed, but also sets up the scanner for scanning orange-colored media (i.e. color
negatives) by exposing the green and blue channels more than the red channel.
If you choose "Image", no film correction is applied, so the cropped file will be
comparable to the image on the film. If you select "Negative film" or "Slide film", the
cropped image will be comparable to the original scene that was photographed. When
you use either film option, the Color tab then lets you choose the film manufacturer, the
brand, and film type to enable VueScan to refine the result further.
The difference between "Image" and "Slide film" is subtle. If you take the same
picture with Kodachrome and Ektachrome film and then scan them with the "Slide film"
setting, VueScan will try to make the resulting scan look the same (i.e. to resemble the
original scene). Use the "Image" setting and the resulting scans will look different to
reflect the differing color characteristics of Kodachrome and Ektachrome film.
If you then took the same picture with Kodak Gold color negative film and scanned it
using the "Negative film" setting, the resulting scan should look close to what you would
get from using the "Slide film" setting and scanning the Kodachrome and Ektachrome
slides (i.e. all three should look like the original scene).
VueScan contains sensitometric data for 200 types of negative film and 4 types of
slide film. If you've got something different, choose Kodachrome for K14 process slides,
and Ektachrome for E6 slides.
Basic Option: This option is always displayed except whenInput | Bits per pixel (p. 52)
is set to 1.
Input | Microfilm zoom
This option is displayed when scanning microfilm or microfiche. It indicates how much
you need to zoom to restore the microfilm/microfiche image to it's original size. Most
microfilm uses a zoom value from 8 to 14.
Advanced Option: This option is displayed when scanning transparent media and
Input | Media (p. 50) is set to "Microfilm".
Input | Media size