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Nikon Nikkor 20mm F/4 AI'D Manual Focus Lens {52}

Nikon Cameras
KEH Model# 220745

This product is currently out of stock. Please contact a KEH photography expert to discuss similar options.

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Nikon Nikkor 20mm F/4 AI'D Manual Focus Lens {52} Description


This is an Ultra wide lens and is based on 35mm or full-frame format. It is wider than 24mm.  Ones of this type will give a distorted image compared to a non-fisheye which will keep perspective normal. Generally they can focus much closer than a standard or regular wide-angle lens. In some cases, the filter is either built-in or screws in to the rear of the lens. If you use this lens on a less-than full-frame camera, you will have to multiply the focal length by a factor based on the exact format you are shooting. In most cases, this is about 1.5x, but can vary slightly. There are focal lengths in this type available – 8mm, 15mm, 16mm, 17mm, and 20mm.

KEH Specifications

  • Focal Length: 20mm
  • Aperture Maximum: f/4
  • Aperture Minimum: f/22
  • Camera Mount Type:  Nikon F
  • Format Compatibility: Nikon FX/35mm film
  • Angle of view: 94 degrees
  • Minimum Focus Distance: 1'
  • Elements/Groups: 10/8
  • Diaphragm Blades: 7
  • Filter Thread: 52mm
  • Dimensions: 1.4" x 2.5"
  • Weight:  7.35 oz.


General information

Brand Name Nikon
Product information
Lens Type Wide-angle

Technical Information

Fixed Focal Length 20 mm
Max Aperture f/4

Physical Characteristics

Lens Mount Nikon F Mount Ai