The focus wheel, Calibration – Nikon LS-10 Installation Guide for Macintosh User Manual
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Basic Operation
Chapter 4
If this focusing method does not yield satisfactory results, an alternative is to re
mount the film in a glass mount. This can help to flatten non-flat film. It is best to use
glass on the base side only, as a support surface.
The Focus Wheel
The focus wheel is located on Coolscan’s front panel, as shown in Figure 4.20.
This wheel can be easily adjusted by rotating it with your thumb. A line is provided to
center the film in the field of focus. Rotating the wheel in either direction will aflFect the
focus.
Focus Wheel
Figure 4.20
Coolscan’s focus wheel.
The technique used to focus film is described in detail in the
Software Reference for
Scanners.
Briefly, after a preview scan is performed, the result is displayed in the preview
window on your screen. By manually rotating the focus wheel while the image is on
screen, you can see how the resulting scan would be affected by changes to the position
of the wheel. The wheel should then be left to rest at the setting which yields the
sharpest image on the screen, before proceeding with the final scan.
Calibration
Coolscan is a self-calibrating scanner. Due to Coolscan’s patented light source,
there is no significant warm up time required. A calibration procedure occurs automati
cally during the power-up cycle of your Coolscan. This procedure is part of a diagnostic
cycle, and typically takes thirty seconds to complete. Once the LED located on tbe
front panel shows steady green, Coolscan is ready to operate.
Page 50
Nikon
Coolscan Installation Guide for Macintosh