Nikon AI-S Zoom-Nikkor 100-300mm f/5.6 Instruction Manual - Page 10
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DEPTH-OF-FIELD INDICATORS
Depth of field (i.e., the zone of acceptable image focus) can be checked by reading the
color-coded depth-of-field indicators ® engraved on the lens barrel. The pairs of color-
ed lines on either side of the white distance scale index line correspond to f/numbers of
the same color on the aperture scale ®. You can also observe the depth of field
through the viewfinder by simply pressing the depth-of-field preview button on the cam-
era body.
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 aperture-direct-readout scales
Diaphragm: Fully automatic
Exposure measurement: Via full-aperture method
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 snap-on front lens cap
Rear lens cap LF-1
62mm screw-in lens hood HN-24
Optional
62mm screw-in filters
Hard lens case CL-40
TeleconverterTC-201*
Teleconverter TC-200*
Teleconverter TC-14B
Teleconverter TC-14
* Vignetting or other performance deterioration may be noticeable in the image re-
corded on the film.
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