Please wait...

Continue shopping
or View cart & checkout
Continue shopping
or View cart & checkout

Unfortunately your current device does not have features required to fully protect your sensitive data while shopping online. In order to protect your own security, we do not allow the placing of orders using insecure devices. To become our valued customer, please upgrade your Internet browser software to a more recent and secure version. We recommend using the latest version of Google Chrome or Mozilla Firefox, but any modern browser will enable you to shop with us. For additional information please feel free to contact our customer support on 1-800-342-5534 .

Nikon Nikkor 21mm (2.1CM) F/4 O Non AI Manual Focus Lens (For F, F2 Only)

Nikon Cameras
KEH Model# 220769

This product is currently out of stock.

Do you want to be notified?

We’ll Email you when product is in stock

Do You Have One To sell?

Sell Your Gear To KEH and Get Cash


Nikon Nikkor 21mm (2.1CM) F/4 O Non AI Manual Focus Lens (For F, F2 Only) Description


Nikkor-O 21mm (2.1cm) f/4 was designed by Mr. Zenji Wakimoto, a highly respectable Japanese lens designer known for the creation of Micro-Nikkor series lenses. The 21mm F/4 is a wide-angle lens with superb optical performance. Its optical design consist of eight elements in four groups with two inner three element groups encompasses the iris. Additional features include seven blade diaphragm, 0.9 meter close focus distance, 92° viewing angle and 52mm filter thread. The lens also requires the use of a mirror lockup and a separate optical viewfinder. 

KEH Specifications

  • Focal Length: 21mm
  • Aperture Maximum: f/4
  • Aperture Minimum: f/16
  • Camera Mount Type: Nikon F 
  • Format Compatibility: 35mm, FX
  • Minimum Focus Distance: 0.9m
  • Elements/Groups: 8/4
  • Diaphragm Blades: 7
  • Tripod Collar: No
  • Filter Thread: 52mm
  • Length: 2.54cm
  • Weight: 5.3 oz (135g) 


General information

Brand Name Nikon
Lens Type Wide-angle

Technical Information

Fixed Focal Length 21 mm
Max Aperture f/4

Physical Characteristics

Lens Mount Nikon F Non-Ai