The AF-S DX Zoom-Nikkor 12-24mm 4G is a lens manufactured by
Nikon
(, ; ), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products. The companies held by Nikon form the Nikon Group.
Nikon's products include cameras, camera ...
for use on
Nikon DX format
The Nikon DX format is an alternative name used by Nikon corporation for APS-C image sensor format being approximately 24x16 mm. Its dimensions are about (29 mm vs 43 mm diagonal, approx.) those of the 35mm format. The format was ...
digital SLR
A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor.
The reflex design scheme is the primary difference between ...
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
as the first lens specifically designed for the
Nikon DX format
The Nikon DX format is an alternative name used by Nikon corporation for APS-C image sensor format being approximately 24x16 mm. Its dimensions are about (29 mm vs 43 mm diagonal, approx.) those of the 35mm format. The format was ...
.
This lens was replaced by the AF-S DX NIKKOR 10-24mm f/3.5-4.5G ED announced on April 14, 2009.
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
In digital photography, the crop factor, format factor, or focal length multiplier of an image sensor format is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital ca ...
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
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
An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system ...
motor with full-time manual override
*
Nikon F-mount
The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format single-lens reflex cameras. The F-mount was first introduced on the Nikon F camera in 1959, and features a three-lug bayonet mount with a 44mm thro ...
lens exclusively for use with
Nikon DX format
The Nikon DX format is an alternative name used by Nikon corporation for APS-C image sensor format being approximately 24x16 mm. Its dimensions are about (29 mm vs 43 mm diagonal, approx.) those of the 35mm format. The format was ...
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)
Construction
* eleven lens elements in seven groups
* three aspherical elements
* two ED glass elements
See also
*
List of Nikon compatible lenses with integrated autofocus-motor
References
{{DEFAULTSORT:Af-S Dx Zoom-Nikkor 12-24mm F 4g If-Ed
Camera lenses introduced in 2003
Nikon F-mount lenses