Nikon Reflex-Nikkor 1000mm f/11 Buku Petunjuk - Halaman 11

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CONTROLLING THE EXPOSURE

Since the Reflex-Nikkor is fitted with a fixed f/11 aperture, exposure adjustments are

possible only via the use of neutral density filters (or by adjusting the camera's shutter

speed). Nikon offers three different ND filters (the ND4X is provided with the lens)

having exposure factors of 2X, 4X and 8X, respectively, to enable effective aperture

settings of f/16, f/22 and f/32 with the Reflex-Nikkor 1000mm f/11. The table below

shows the various effective apertures and factors available with each filter; note that

since the ND filter only cuts down the light striking the film without reducing the lens

aperture, depth of field remains the same.

Type of filter

ND2X

ND4X

ND8X

Exposure factor

Effective aperture

with the Reflex-

Nikkor 1000mm f/11

FEATURES/SPECIFICATIONS

Focal length: 1000mm

Maximum aperture: f/11

Lens construction: 5 elements in 5 groups

Picture angle: 2°30'

Distance scale: Graduated in meters and feet from 8m (25 ft) to infinity (»)

Exposure measurement: Via stop-down measurement; meter coupling shoe not

provided

Lens hood: Slip-out type built into front of lens

Tripod mounting: Via socket in tripod mounting collar; collar rotatable on lens to

permit vertical and horizontal format picture-taking; click-stops provided at each

90° of rotation; collar locking screw provided

Attachment size: 108mm (P = 0.75mm)

Filters: 39mm screw-in type via rear threaded mount; provided with set of five filters,

including L37C, A2, B2, 056 and ND4X; one filter must be in place at all times

Mount: Nikon bayonet mount

Dimensiosn: Approx. 119mm dia. x 233.5mm extension from camera's lens mounting

flange; approx. 241mm long (overall)

Weight: Approx. 1900g

ACCESSORIES

Supplied

Five 39mm screw-in filters

Hard lens case CL-29

Leather lens cap

Rear lens cap LF-1

Optional

Other 39mm screw-in filters

Teleconverter TC-301

Teleconverter TC-14B