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

Senin, 28 Maret 2011

AF-S NIKKOR 16-35mm f/4G ED VR

Ultra wide-angle 16-35mm FX-format-compatible zoom lens with built-in vibration reduction
Click to view lens specs
  • VR
  • SWM
  • N
  • ED
  • AS
  • M/A
  • IF

Key Features

  • Ultra wide-angle zoom lens that covers focal lengths from 16mm to 35mm
  • Vibration Reduction (VR II) enables sharper pictures while shooting at shutter speeds up to four stops* slower than would otherwise be possible
    • *As determined in Nikon performance tests.
  • The adoption of Nano Crystal Coat effectively reduces ghost and flare
  • An ultra wide-angle zoom lens that, while offering a wide angle view of 107°, is compatible with 77mm screw-on filters
  • Fixed maximum aperture of f/4
  • ED glass and aspherical lens elements are utilized for a new optical design that achieves high resolution
  • Quiet focusing with built-in Silent Wave Motor (SWM)
  • Two focus modes selectable - M/A and M

Specifications

Focal length
16-35mm
Maximum aperture
f/4
Minimum aperture
f/22
Lens construction
17 elements in 12 groups (with two ED glass and three aspherical lens elements, and Nano Crystal Coat)
Angle of view
107° - 63° (83° - 44° with Nikon DX format)
Closest focusing distance
0.29 m (1.0 ft.) at a focal length of 16mm or 35mm, 0.28 m (0.9 ft.) at a focal length between 20mm and 28mm
Maximum reproduction ratio
0.25x
No. of diaphragm blades
9 (rounded)
Filter/attachment size
77mm
Diameter x length
(extension from the camera’s lens-mount flange)
Approximately 82.5 x 125 mm
Weight
Approximately 680 g/24.0 oz.
Supplied accessories
77mm Snap-on Front Lens Cap LC-77, Rear Lens Cap LF-1, Bayonet Hood HB-23, Flexible Lens Pouch CL-1120

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

AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED (2.0x)

Ultra-wideangle zoom lens for exclusive use with Nikon DX-Format digital SLR
Click to view lens specs
  • SWM
  • ED
  • AS
  • M/A
  • IF

Key Features

  • Specially designed and optimized for Nikon digital SLRs
  • Built-in SWM for ultra-fast, ultra-quiet AF operation
  • High optical performance by aspherical lenses and ED glass elements
  • M/A mode for quick switching between autofocus and manual operation
  • Lightweight and compact design

Specifications

Focal length
12-24mm
Maximum aperture
f/4
Minimum aperture
f/22
Lens construction
11 elements in 7 groups (2 ED glass elements and 3 aspherical lenses)
Picture angle
99° - 61°
Closest focusing distance
0.3m (through the entire focal range)
Maximum reproduction ratio
1/8.3
No. of diaphragm blades
7 (rounded)
Filter/attachment size
77mm
Diameter x length
(extension from lens mount)
Appproximately 82.5 x 90 mm/3.2 x 3.5 in.
Weight
Approximately 465 g/16.4 oz.
Supplied accessories
77mm snap-on front lens cap LC-77, 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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