Additional Information on
Pre-AI version of the Nikkor 28mm f/2.8 Wideangle Lens

 
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Non-Ai Nikkor 28mm f/2.8 wideangle lense

Most people would believe all Nikkor 28mm f/2.8 lenses were all Ai in nature. But not until I have been shown an image of the 28mm f/2.8 non-AI lens that I drived myself searchiing for more information relating to this lens. Well, truth is, based on a 1976 Nikon Sales Manual, this lens did exist before year 1977, so I would assume it must have been introduced between 1975 to 1977. It already bearing a rubberized focuing ring and has the diamond-ridge aperture ring design. SO, I would assume the AI lens introduced later must have been a diredct conversion from this version. The pre-AI period 28mm f/2.8 Nikkor was considered as a newest addition lens to the popular focal length, offering an alternative medium fast speed to choose from. Complementing its relatively bright f/2.8 maximum aperture are the compact barrel size and the light weight of the unit; one of the key characteristic was, the 28mm lens extends a short 44,5mm when mounted at a camera body, and it weighs only 240g. However, Nikon's CRC system was not incorporated into the design yet and that was not until the late
Ai or the Ai-S version in 1981, such feature was incorporated.

28mmf28preAI.jpg 28mmf28preAIoptsml.gif
But still, the 28mm f/2.8 is exceptionally sharp, with coma and spherical aberration well corrected for top quality, high-contrast performance at all apertures, including full aperture, Also, NIC on air to glass lens surfaces ensures that flare and ghost arc fully under control, even in demanding shooting situations where a high intensity light source is within the picture angle of the lens. The fully automatic diaphragm makes for bright viewing, focusing and composing. The 52mm screw-in attachment size provided ensures that most common lens accessories are fully usable.

Download an Optical Construction file in new browser window: 16k Gif

28mmf28preAIsrnDOFsml.gif
Nikon guide to compatible focusing screen(s) selection, Depth of Field calculation chart and also tables of magnification achievable when used with various Nikon close-up attachment accessories with this 28mm wideangle lens. Download a file in a new browser window 112k.Gif. Content is mainly extracted from Nikon Sales Manual(s) between 1974-1976.

NOTE:- Refer to the Rangefinder Nikkor lenses section for more info

Specifications:

Focal length:
28mm
Maximum aperture: 1:2.8; Lens construction: 7 elements in 7 groups
Aperture Scale: f/2.8 ~ f/22; Diaphragm: Fully automatic
Lens Coating: Multicoated with NIC; Picture Angle: 74
°
Distance Scale: Graduated in meters and feet from 0.3m (1ft.) to infinity (OO); infrared index is provide.

28mmf28nonAIa.jpg 28mmf28nonAI2.jpg
Credit: Two lovely images of this Pre-Ai version of the Nikkor 28mm wideangle lense contributed by Sambor Photo ® <ebaysales@samborphoto.com>. Images copyright © 2003. All Rights Reserved.

Exposure Measurement: via full aperture method; meter coupling prong provided
Meter coupling prong: Integrated (fully open exposure metering)
Attachment size: 52mm (P=0.75mm)
; Lens hood: Screw-in type HN-2 (Optional)
Filters: 52mm Screw-in; Lens Mount: Nikon bayonet mount
Dimensions: 63.5mm dia. x 54mm long; Weight: 230g
Accessories Supplied: Rear protective cap LF-I (108-00-401); 52mm Snap-On front lens cap (108-00-400);
Optional Accessories: 52mm screw-in lens hood HN-2 (108-01-202); Soft lens pouch No.54 (108-00-319); Hard lens case CL-31 with strap (108-00-308); 52mm screw-in filters; Close-up attachment lenses; plastic lens case CP-1 (108-00-300); Gelatin filter holder AF-1 (108-00-700).

Nikon Product Code for this discontinued item is No.108-01-129
Content appeared in this section is largely extracted from Nikon Sales Manual, 1974/1976.


Ai 28mm f/3.5 Nikkor

Similarly, the Nikkor 28mm f/3.5 was given an entirely different face lift around year 1975/6, making it closer to a more modern Nikon lens look and feel. Further, the minimum aperture has stopped down further to f/22 instead of f/16. Ever since its introduction, the inexpensive and high performance 28mm f/3.5 lens has been a very popular model with Nikon users. For most general wideangle photography situations (except those under low light conditions), the handy lens size, light weight, and wide-field coverage have convinced many a user of the merits of this excellent wideangle lens. The updated 28mm f/3.5 Nikkor continues in the tradition of the former model, retaining the same handy size and including an improved optical system which claimed to be of even higher overall performance; coma and distortion are fully control led, with contrast and brilliance at the same high levels.

28mmf35preAI.jpg 28mmf35preAIoptsml.gif
The updated lens which has a very modern Nikkor physical appearance also continues to offer full correction of spherical aberration, thus, eliminating focus shift as the diaphragm is stopped down; this feature is particularly important, as the lens has featured aperture settings to f/22 at one stop improvement from older versions. The application of NIC on air-to glass lens surfaces is one more improvement ensuring top image quality, high image contrast. As with most other wideangle Nikkor lenses, this unit is provided with the 52mrn attachment size for most common lens accessories.

Download
an Optical Construction file in new browser window: 15k Gif

28mmf35preAIsrnDOFsml.gif
Nikon guide to compatible focusing screen(s) selection, Depth of Field calculation chart and also tables of magnification achievable when used with various Nikon close-up attachment accessories with this 24mm wideangle lens. Download a file in a new browser window 100k.Gif. Content is mainly extracted from Nikon Sales Manual(s) between 1974-1976.

Specifications:

Focal length:
28mm
Maximum aperture: 1:3.5; Lens construction: 6 elements in 6 groups
Aperture Scale: f/3.5 ~ f/22
Diaphragm
: Fully automatic; Lens Coating: Multicoated with NIC; Picture Angle: 74
°
Distance Scale: Graduated in meters and feet from 0.3m (1ft.) to infinity (
OO); infrared index is provide.
Exposure Measurement: via full aperture method; meter coupling prong provided
Meter coupling prong: Integrated (fully open exposure metering)
Attachment size: 52mm (P=0.75mm)

Lens hood: Screw-in type HN-1 (Optional)
Filters: 52mm Screw-in; Lens Mount: Nikon bayonet mount
Dimensions: 63.5mm dia. x 54mm long; Weight: 240g
Accessories Supplied: Rear protective cap LF-I (108-00-401); 52mm Snap-On front lens cap (108-00-400);
Optional Accessories: 52mm screw-in lens hood HN-2 (108-01-202); Soft lens pouch No.54 (108-00-319); Hard lens case CL-31 with strap (108-00-308); 52mm screw-in filters; Close-up attachment lenses; plastic lens case CP-1 (108-00-300); Gelatin filter holder AF-1 (108-00-700).

Nikon Product Code for this discontinued item is No.108-01-134
Content appeared in this section is largely extracted from Nikon Sales Manual, 1974/1976.
Note: Starting serial number for this lens was believed to have started from: 850001(c) 06/1973 - 03/1975; 195531(k) 02/1975 - 03/1977.

| back | The pre-AI Nikkor 28mm f/2.0

| Back | to Main Index Page of Manual Focus Nikkor lenses at 28mm focal length

| Early Versions (non-Ai) | mid-1970 (pre-AI) | Late 1970 (Ai) | Early 1980 - Present: 24mm f/2.0 ; 24mm f/2.8 | Additional info on: W-Nikkor 2.5cm f/4.0 | Relative: PC-Nikkor 28mm f/2.8 and PC-Nikkor 28mm f/4.0

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Recommended links to understand more technical details related to the Nikkor F-mount and production Serial Number:
http://rick_oleson.tripod.com/index-153.html by: my friend, Rick Oleson
http://www.zi.ku.dk/personal/lhhansen/photo/fmount.htm by: Hansen, Lars Holst
http://www.mir.com.my/rb/photography/hardwares/nikonfmount/lens2.htm
http://www.photosynthesis.co.nz/nikon/serialno.html

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leofoo.Gif Co-developed with my web buddy, Rick Oleson® & LARs.Gif Denmark, Creator of the Nikon Repair Group Mailing-List; A contributing effort to Michael Liu's Classic Nikon SLRs and Nikkor optic site.

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.