Additional Information on
AI-Nikkor 300mm f/2.8 EDIF


Ai-Nikkor 300mm f/2.8 ED-IF

The 300mm Nikkors dramatically exhibit the powerful magnification, minimal depth-of-field, and compressed perspective so valuable in creative telephotography. Exceptionally fast for its focal length, the f/2.8 model is a real professional lens incorporating the latest Nikon technology. Nikon Internal Focusing (IF) system assures excellent holding balance while Extra-low Dispersion (ED) glass gives ultimate image sharpness and color correction. The focusing ring of this lens has a special preset ring that is click-stopped to facilitate rapid refocusing to a specific taking distance. The Nikkor 300mm f/4.5 lens is
available both in standard and ED versions. Both lenses are compact and handy 300s and are widely employed in news, nature, sports and surveillance photography. All of these 300mm lenses have rotating collars with tripod sockets as well as lens hoods for extra protection against extraneous light.

Credit: Image courtesy of Mr. Gr. Peter de Boer® from Groningen, Netherlands. Also check Peter's on-line portfolio con similar usage. The lense was used along with a Nikon D70 Digital Still SLR camera. Image copyright © 2005. All rights reserved. Please respect the visual property of the contributing photographer.

The Nikkor 300mm f/2.8 EDIF was first introduced during late 1977. It was the first production version that has employed with a revised internal focusing design (Earlier version(s) has no IF feature). The Ai-Spec lens was an instant favourite for many professional photographers who covers sports, indoor games, news, wildlife and even for fashion/stage shows. The lens has other features such as a rotating tripod socket for easy manupulation of horizontal/vertical format shooting, a hard carrying lens eyelet.

The early version of this high speed lens can focus down to a minimum distance of 13 ft. (4 m) which fell short of the 10 ft (3m) achieved by the
Ai-S version introduced later in 1982. Further, Nikon has designed to have f/22 minimum aperture which is a stop faster from the earlier lens which stops down to f/32. Serial number for this early version of this ED-IF 300mm high speed Nikkor lens may have been started from 605101.The lens hood design of this version has a built-in telescopic type which was reverted to snap-on type of design found on all subsequent version(s).

Technical highlights for Nikkor 300mm f2.8 IF-ED * Telephoto picture coverage of 8°10'. * Internal Focusing (IF) design for easy handling. * Extra-Low Dispersion (ED) glass for outstanding picture quality. * Focusing ring allows adjustment to a particular click-stop setting for rapid refocusing. * Special slip-in filter holder accepts 39mm screw-in filters. * Built-in telescopic lens hood and rotatable tripod socket collar. Supplied with a screw-in front lens cap and hard lens case. Photographic uses include photojournalism, sports, wildlife, stage shows, and available light shooting.

<<< --- Also check the Pre-AI versions of the Nikkor 300mm f/2.8 ED. Nikkor 300mm f/4.5 ED, Nikkor 300mm f/4.5 and the subsequent AI-Nikkor 300mm f/4.5 ED-IF and AI-Nikkor 300mm f/4.5 telelphoto lenses.


Focal length/Aperture:
300mm f/2.8 IF-ED
Lens construction:
8 elements in 6 groups
Picture angle:
8°10'; Diaphragm: Automatic
Aperture scale:
f/2 8 ~ f/22 on both standard and aperture-direct-readout scale
Exposure measurement:
Via full aperture method; meter coupling ridge provided for Al cameras and meter coupling shoe for non-AI cameras
Distance scale:
Graduated in meters and feet from 4m (13 ft) to infinity (oo)
2.5kg Dimensions: 138mm dia. x 249mm long (overall); 241mm extension from flange
Attachment size:
122mm (P= 1)

Front lens cap:
Lens hood:
Lens case:
CL-63 (provided); No. 57

<<<---Optical Contruction in PDF file (60k)

Nikkor 300mm f/2.0s EDIF | Nikkor 300mm f/2.8s EDIF | Nikkor 300mm f/2.8 EDIF | Pre-AI Nikkor 300mm f/2.8 ED Preset | Non-AI Nikkor 300mm f/2.8 Preset | Nikkor 300mm f/4.5s EDIF | Nikkor 300mm f/4.5 EDIF | Nikkor 300mm f/4.5 ED | Pre-Ai Nikkor 300mm f/4.5 ED | Nikkor 300mm f/4.5s | Nikkor 300mm f/4.5 | Pre-AI Nikkor 300mm f/4.5 | Non-Ai Nikkor-H 300mm f/4.5 | Non-Ai Nikkor-P 300mm f/4.5 | Nikon Focusing Unit AU-1 | Original Focusing Unit |

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Recommended links to understand more technical details related to the Nikkor F-mount and production Serial Number: by: my friend, Rick Oleson by: Hansen, Lars Holst

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Credit: MCLau®, who has helped to rewrite some of the content appeared this site. Chuck Hester® who has been helping me all along with the development of all these Nikon websites; Lars Holst Hansen, 'Hawkeye' who shares the same passion I have; Ms Rissa, Sales manager from Nikon Corporation Malaysia for granting permission to use some of the official content; Ted Wengelaar, Holland who has helped to provide many useful input relating to older Nikkor lenses; Some of the references on production serial numbers used in this site were extracted from Roland Vink's website; Hiura Shinsaku from Nikomat Club Japan. Lastly, to all the good people who has contributed their own expeience, resources or kind enough granted permission to use their images of their respective optic in this site. It is also a site to remember a long lost friend on the Net. Note:certain content and images appeared in this site were either scanned from official marketing leaflets & brochures published by Nikon and/or contribution from surfers who claimed originality of their work for educational purposes. The creator of the site will not be responsible for may discrepancies arise from such dispute except rectifying them after verification. "Nikon", "Nikkormat", "Nippon Kokagu KK" & "Nikkor" are registered tradename of Nikon Corporation Inc., Japan. Site made with an Apple IMac.