DEPTH-OF-FIELD INDICATORS
Depth of field (i.e., the zone of acceptable image focus) can be checked by reading the
INFRARED PHOTOGRAPHY
In infrared photography, the plane of sharpest focus is slightly more distant than the one produced by visible light and seen through the viewfinder. To compensate for the shift in focus, the lens has a curved red line on the lens barrel. After focusing the image sharply through the viewfinder, check the focused distance. Then turn the focusing/ zooming ring to the left until the red line lines up with the prefocused distance.
SPECIFICATIONS
Focal length: 100mm to 300mm
Maximum aperture: f/5.6
Lens construction: 14 elements in 10 groups
Picture angle: 24°20' to 8° 10'
Distance scale: Graduated in meters and feet from 2m (7ft) to infinity (°°): macro fo- cusing mode at only 100mm focal length setting; at this setting, down to 0.71m (2.3ft)
Focus/zoom control: Via a single control ring; focusing is done by rotating the ring, zooming by sliding it in or out; reference scale for focal length settings of 100mm, 135mm, 200mm and 300mm are provided on the lens barrel; in macro mode, zooming is impossible from 2m (7ft) to 0.71m (2.3ft)
Macro focusing function: Operable only with the focusing/zooming ring set to 100mm focal length setting; at this setting, close focusing down to 0.71m (2.3ft) is possible
Aperture scale: f/5.6 to f/32 on both standard and
Diaphragm: Fully automatic
Exposure measurement: Via
Mount: Nikon F mount
Attachment size: 62mm dia. (P=0.75)
Dimensions: 74mm dia. x 207mm long (overall); 199mm extension from flange
Weight: Approx. 930g
ACCESSORIES
Supplied
62mm
62mm
Optional
62mm
*Vignetting or other performance deterioration may be noticeable in the image re- corded on the film.
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