Rabu, 30 Maret 2011

AF Zoom-Nikkor 18-35mm f/3.5-4.5D IF-ED (1.9x)

Portable ultra-wideangle zoom lens
Click to view lens specs
  • ED
  • AS
  • IF

Key Features

  • High optical performance by aspherical lens and ED glass element
  • Focuses down to 0.33m
  • IF (Internal Focusing) technology for smoother focusing and a better balanced handling
  • Seven-blade rounded diaphragm achieves a natural blur for out-of-focus elements

Specifications

Focal length
18-35mm
Maximum aperture
f/3.5-4.5
Minimum aperture
f/22-32
Lens construction
11 elements in 8 groups (1 ED glass element and 1 aspherical lens)
Picture angle
100° - 62° [76° - 44° with Nikon digital cameras (Nikon DX format)]
Closest focusing distance
0.33m
Maximum reproduction ratio
1/6.7
No. of diaphragm blades
7 (rounded)
Filter/attachment size
77mm
Diameter x length
(extension from lens mount)
Appproximately 82.5 x 82.5 mm/3.2 x 3.2 in.
Weight
Approximately 370 g/13.0 oz.
Supplied accessories
77mm snap-on front lens cap, Rear lens cap LF-1, Bayonet Hood HB-23

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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