User`s guide
INDEX 
57 
Basic Option: This option is always displayed. 
Input | Skew 
Use this option to rotate the image by a small angle to correct for images that aren't 
quite straight.    The angle is specified in degrees, plus or minus two degrees. 
Advanced Option: This option is displayed when auto skew isn't enabled. 
Input | Mirror 
This option mirrors images left/right before rotating. This lets you position your film 
emulsion side up or down. 
Advanced Option: This option is always displayed. 
Input | Auto focus 
Set this option to enable a focus before doing a preview or scan (or both).    The 
scanner will focus on the point specified by Crop | Focus X/Y offset (p. 69).    This 
location is visually represented by an animated cross-hair in the Preview    tab after a 
preview scan is created. 
Set to "Preview" so that focus will only be done once if the scan    is to be created 
directly after the preview.    Otherwise, set to "Always" or to ensure the most accurate 
focus (as in some cases the heat    generated by the preview can cause the media to 
bend).     
If you have locked exposure and turned off auto-cropping (see "Advanced Workflow 
Suggestions") no preview will be performed. In this case, you must focus at scan time, 
so either "Scan" or "Both" will ensure focusing. 
Advanced Option: This option is displayed when the scanner is capable of auto focus. 
Input | Focus 
Set this option to a value between -1 and 1 to manually change the device focus.    The 
nominal value for most scanners is 0. 
Advanced Option: This option is displayed when the scanner is capable of auto focus 
and when Input | Auto focus (p. 57)is set to "Manual". 
Input | Auto scan 
If this option is set to "Preview" or "Scan" and if the scanner can sense when an image 
is inserted, VueScan will simulate pressing either the Preview button (p. 46) orScan 
button (p. 47) when an image is inserted. 
This option is reset to "None" if you press the Cancel button (p. 48) 
Advanced Option: This option is displayed when the scanner can sense inserted 










