|AF||Autofocus lens with mechanical transmission of the aperture value to the camera. Designed for Nikon SLR cameras equipped with built-in motor. The autofocus will not be available with the rest of Nikon SLR cameras.|
|D||The lens transmits distance information to the camera.|
|Position in the lineup|
|Nikon AF-S Nikkor 20mm F/1.8G ED||Sep 2014||⊗|
|Nikon AF Nikkor 20mm F/2.8D||Mar 1994||⊗|
|Nikon AF Nikkor 20mm F/2.8||Feb 1989||⊗|
|Nikon AI-S Nikkor 20mm F/2.8||Oct 1984||⊗|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||94.5° (35mm full frame)
70.5° (Nikon APS-C)
|Lens construction:||12 elements in 9 groups|
|Closest focusing distance:||25 cm|
|Number of diaphragm blades:||7|
|Type of autofocus motor:||No motor (Nikon F)
|Full-Time Manual Focus:||No|
|Maximum diameter x Length:||Ø69 x 42.5 mm|
|Materials:||High-quality plastic barrel, metallic mount|
|Filter size:||62 mm|
The lens barrel is compact, of moderate weight, made of high-quality plastic. The lens mount is metallic.
The lens lacks focusing mode switch, therefore you have to set the automatic or manual focus mode from the camera. Full-Time Manual Focus is not available.
The lens uses front filters with standard size of 62 mm which are easy to find. They are also inexpensive.
The lens incorporates a floating system that provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. Learn more
- The autofocus will not be available with Nikon D40, D40X, D60, D3000-D3400, D5000-D5600 SLR cameras.
The focusing ring rotates during autofocus which looks pretty anachronistic by today's standards. It is strongly recommended not to touch the ring or manually stop its movement because it might result in damage to the lens and/or camera.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
|Sensor size||35.9×24 mm|
|Vignetting at F/2.8||-2.26 EV|
Alternatives (AF, 17..23 mm)
|Nikon AF Nikkor 18mm F/2.8D||1994||⊗|
|Nikon AF Nikkor 20mm F/2.8||1989||⊗|
|Nikon AF-S Nikkor 20mm F/1.8G ED||2014||⊗|
|Sigma 20mm F/1.4 DG HSM | A||2015||⊗|
|Sigma 20mm F/1.8 EX DG Aspherical RF||2000||⊗|