User`s guide
VueScan User's Guide
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Graph curve: similar to the Curves tool in image editors such as Photoshop(TM), this
allows you to fine tune highlights, midtones and shadows. Drag the arrows at the base
of the graph to make adjustments
Calculating DPI for negatives
The following shows a basic formula for scaling a negative up to print size. It is important to note
that a 35mm frame will correctly scale proportionately to a 4x6in and 8x12in print.**
Scaling formula: (final image width X printer DPI)/original size = scanner resolution
For example, if you want to print a 4x6in print at 300 dpi on the printer from a 35mm
negative, first calculate the width:
4in x 300 printer DPI = 1200, then divide by original 0.9448 inch = 1270 (custom scanner dpi)
Then, just to be sure, calculate the height:
6 inch x 300 dpi = 1800, then divide by original 1.417 inch = 1270 (custom scanner dpi)
To scale to either 5x7 inch or 8x10 inch you should calculate using the larger dimension to avoid
having to crop the photo (eg 7 for 5x7 and 10 for 8x10). Use the lower value if you want exactly
5x7 inch or 8x10 inch but plan on cropping in your photo editor.
** A 35mm frame is 24x36 mm. This is approximately equivalent to 0.9448x1.417 inch.