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

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