Operation Manual

2-38 Understanding EPSON TWAIN Pro Features
Auto Focus:
Clicking this button adjust the focus position automatically.
This works exactly the same way the Auto Focus button in
the Adjust dialog box works.
Focus Position:
You can select from-3.0 (Lowest) to 9.0 (highest) by moving
the slider, clicking the left or right arrow, or typing a value
from -3.0 to 9.0 in increments of 0.1 in the Focus Position box.
By adjusting the focus position, you can reduce the occurrence
of moire patterns when scanning.
Note:
❏ If TPU (for Neg. Film or for Pos. Film) is selected as the
Document Source, the value of the focus position is
automatically set to 2.5. If Flatbed or ADF (Single-sided or
Double-sided) is selected, the value is automatically set to 0.
❏ If you set the film to be scanned using film holders, you do not
need to change the focus setting. If you set the film directly on
the scanner’s document table, it is recommended to change the
focus position to 0.0.
Selected area for focusing window:
This window shows a preview image of the active marquee.
If there is no marquee in the Preview window, the focus
marquee window shows a full preview image. To change the
image in the focus marquee window, change the marquee or
the image in the Preview window.