Nikon AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED

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AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED [1]
File:12-24-Nikkor.jpg
Maker Nikon
Technical data
Focal length 12-24mm
Crop factor 1.5
Aperture (max/min) f/4 - f/22
Close focus distance 0.30m
Max. magnification 1:8.3
Diaphragm blades 7 (rounded)
Construction 11 elements / 7 groups
Features
Ultrasonic motor Yes Yes
Lens-based stabilization No No
Macro capable No No
Application Wide-angle zoom
Physical
Max. length 82.5 mm
Diameter 90mm
Weight 465g
Filter diameter 77mm
Accessories
Lens hood HB-23
Case CL-S2
Angle of view
Diagonal 99°-61° (with DX format)
History
Introduction 2003

The AF-S DX Zoom-Nikkor 12-24mm f/4G is a lens manufactured by Nikon for use on Nikon DX format digital SLR cameras. It provides an angle of view on a DX format camera similar to that of an 18-35mm lens on a 135 film format camera.

Introduction

Nikon announced the lens on 18 February 2003[2] as the first lens specifically designed for the Nikon DX format.[3]

This lens was replaced by the AF-S DX NIKKOR 10-24mm f/3.5-4.5G ED announced on April 14, 2009.[4]

Target market

At the time the lens was introduced, Nikon did not make a zoom lens which would provide an ultra-wide-angle view on a DX format camera. Due to the crop factor of the DX format, wide-angle zoom lenses such as the 18-35mm provided an angle of view equivalent to a 27-52.5mm lens; more typical of a normal zoom.

The purpose of the 12-24mm was to fill this gap in the ultra-wide- to wide-angle range[3] that would otherwise require users to purchase relatively expensive prime lenses such as the 13mm, 15mm and 18mm Nikkors.

Features

  • 12-24mm focal length (approximately equivalent to an 18-35mm lens used on a 135 film format camera)
  • Compact silent-wave autofocus motor with full-time manual override
  • Nikon F-mount lens exclusively for use with Nikon DX format DSLRs
  • Extra-low Dispersion (ED) glass elements to reduce chromatic aberration
  • Aspherical elements to reduce distortion
  • Super integrated coating (SIC) to reduce flare and ghosts
  • Internal focusing (IF)[2]

Construction

  • eleven lens elements in seven groups
  • three aspherical elements
  • two ED glass elements[1]

See also

References

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  4. http://www.nikon.com/news/2009/0414_nikkor_02.htm