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Nikon TC-14B Teleconverter, for Nikon (AI,AIS Over 300mm)

Nikon Cameras
KEH Model# 248845

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

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Nikon TC-14B Teleconverter, for Nikon (AI,AIS Over 300mm) Description


Increase the focal length of virtually any Nikkor SLR lens (including zoom lenses) by adding a Nikon Teleconverter. Nikon Teleconverters can be mounted in seconds between the lens and the camera, and can as much as double the effective focal lenght of the lens in use. For example a 1.4x teleconverter will increase the focal lenght of a 50mm lens to 70mm; a 2x Nikon Teleconverter will increase the focal lenght of a 50mm lens to 100mm; and so on. Please note: Nikon Teleconverters represent the same attention to detail and quality as other Nikon products. However the use of teleconverters may have some inherent limitations (for example, a decrease in f/stop). Also, Nikon AF/AIS lenses must be manually focused when used with teleconverters. TC-14B 1.4X Teleconverter for Nikor AF/AIS lenses 300mm or more.

  • Manual Focus
  • 5 Groups, 5 Elements

KEH Specifications

  • Compatible Lenses: Nikkor telephoto lenses over 135mm focal length and many Zoom Nikkor lenses over 200mm focal length
  • Elements/Groups: 5/5
  • Focal Length: 1.4x 
  • Aperture Coupling Range: f/2 - f/32
  • Effective Aperture: f/2.8 - f/45
  • Reproduction Ratio: 1.4x
  • Diaphragm: Automatic: 
  • Metering: Full-aperture exposure measurement with Ai type Nikkor lenses
  • Depth of Field: Half that of the lens in use
  • Closest Focusing Distance: Same as that of the lens in use
  • Dimensions: 65 x 34mm
  • Weight: 165 g


General information

Manufacturer Part Number 1401
Manufacture GTIN 018208014019
Brand Name Nikon
Product information
Lens Construction
5 Elements in 5 Groups
Product Model

300mm and Longer AIS Lenses

Lens Type
  • Telephoto

Physical Characteristics

Lens Mount Nikon F Mount Ai, Nikon F Mount Ai-S, Nikon F Mount Ai & contacts (Ai-P), Nikon F Mount AF (pre-D), Nikon F Mount D Type