Selasa, 05 April 2011

AF-S Zoom-Nikkor 17-35mm f/2.8D IF-ED (2.1x)

A high-performance, ultra-wideangle zoom lens with SWM
Click to view lens specs
  • SWM
  • ED
  • AS
  • M/A
  • IF

Key Features

  • Fast, ultra-wideangle zoom lens with Silent Wave Motor
  • Features two types of aspherical lens (two molded-glass lenses and one hybrid) and two ED glass elements for higher optical performance
  • 0.28m closest focusing throughout zoom range
  • M/A mode for quick switching between autofocus and manual focus operation
  • Nine-blade rounded diaphragm achieves a natural blur for out-of-focus elements

Specifications

Focal length
17-35mm
Maximum aperture
f/2.8
Minimum aperture
f/22
Lens construction
13 elements in 10 groups (2 ED glass elements and 3 aspherical lenses)
Picture angle
104° - 62° [79° - 44° with Nikon digital cameras (Nikon DX format)]
Closest focusing distance
0.28m (through the entire focal range)
Maximum reproduction ratio
1/4.6
No. of diaphragm blades
9 (rounded)
Filter/attachment size
77mm
Diameter x length
(extension from lens mount)
Appproximately 82.5 x 106 mm/3.2 x 4.2 in.
Weight
Approximately 745 g/26.3 oz.
Supplied accessories
77mm snap-on front lens cap, Rear lens cap LF-1, Bayonet Hood HB-23, Hard Case CL-76

MTF Chart


Wide

Tele

Spatial Frequencies
S: Sagittal
M: Meridional
10 lines/mm
30 lines/mm

Lens Construction



: Aspherical lens elements
: ED glass elements
: Super ED glass elements

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