Nikon LS-10 Installation Guide for Macintosh Bedienungsanleitung PDF herunterladen (Seite 56)

Ckapter 4

Basic Operation

Emulsion Side of the Film

As you learned in a previous section, the two sides of the film are not the same.

One side is the emulsion side, and the opposite side is known as the base. In order to

achieve maximum definition, the emulsion side needs to be face up when inserted into

Coolscan.

Non*flat Film

The film’s surface is not necessarily flat. It may be curved, or buckled, due to age

and storage conditions. If the film’s surface is not flat, the scanner cannot accurately

focus on the entire film surface at the same time. The most common cause of non-flat

film is bowing, caused by heat. This often occurs when slides are stored for several years

under poor conditions. This phenomenon is shown in Figure 4.18.

Base

Figure 4.18 Non-flat film.

35mm film always buckles towards the emulsion, as shown in these illustrations.

In the case of non-flat film, it is therefore necessary to compensate in the focus,

based on the area of the slide being scanned. By scanning only a section of the film, it

may be possible to adjust the focus to best suit the film being scanned. This is shown in

Figure 4.19.

Figure 4.19 Optimizing focus for a section of non-flat film.

Nikon Coolscan Installation Guide for Macintosh

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Nikon LS-10 Installation Guide for Macintosh Bedienungsanleitung Seite 56