Nikon EL2 Bedienungsanleitung PDF herunterladen (Seite 33)

FOCUSING — continued

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Infrared Photography

The plane of sharpest focus for infrared light is slightly

more distant than its counterpart for visible light as seen

through the camera’s viewfinder. Thus, for sharpest fo

cus in infrared photography, adjustments must be

made. To compensate for this shift in focus, first focus

the image sharply through the viewfinder. Then, turn

the focusing ring counterclockwise until the point fo

cused is aligned with the red dot (or line) provided on

the lens barrel. For example, in the picture below, the

lens has been focused for infinity (°°) infrared shooting.

Note that when lenses having a focal length of 50mm

or less are used stopped down to f/8 or below, no ad

justment is necessary due to the large depth of field

available.

Note: Some new optics using Nikon’s Extra-low Dispersion

(ED) glass, as well as reflex (catadioptric) lenses, do not require

refocusing for infrared photography. Refer to individual lens

instruction manuals for details.

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Nikon EL2 Bedienungsanleitung Seite 33