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Nikon (Nippon Kogaku K.K.) Nikkor-T.C 1:5 f=50cm (RF Nikkor 500mm f/5.0)
Super Telephoto lens for Nikon Bayonet S-Mount Rangefinder cameras - Part II


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Carl Zeiss Jena 50cm f8 - LINK to showcase

<<<---- Carl Zeiss Jena Fernobjektiv 50cm 1:8 (8/50cm) with Flektoskop, tripod - adapter 543/70; also see DIRECT MOUNT version; approx year of produce: 1935

Leitz alternatives at other focal lengths --->>>

LINK to Leica Visoflex 400mm f/5.0

LINK to Leica Visoflex 400mm f/5.0

LINK to Leica  400mm f/5.0

SUPPLEMENTARY INFO: LEICA Visoflex Telephoto lenses were sold between 1936~1955 / 1956~1966 for the fast Leitz TELYT 400mm f/5.0; a slower Telyt 400mm f/5.6 was introduced bet. 1966~1971. Contarex has a Tele-Tessar 400mm f/5.6.




Part Two - Nikon (Nippon Kogaku K.K.) RF Nikkor-T.C 1:5.0 f=50cm(500mm f/5.0) telephoto lens for Nikon Bayonet S-Mount Rangefinder cameras Year Introduced: 195x#; Discontinued: probably in 1961/2

# Stated date of release of this version in Nikon Rangefinder Magazine as 1955. This was supported by R. Rotoloni's An illustrated History of Nikon RF cameras which has given a more precise date as February, 1955; however, Mr. P.Braczho's Nikon Hand Book has suggested as early as Sept. 1952 with the Preset version introduced in 1954. No info on the exact date of release for the Leica SM (LSM) version.

For quite some time, no one knows if ever a Nikkor-T 500mm f/5.0 super-telephoto lens was delivered in a manual mount but I would think there are probably two versions being produced back in those rangefinder days. However, one thing is for sure, a version has a preset diaphragm mechanism version. In between, Nikon also had produced an alternate Leica SM mount (M39) model for other camera brands. Next, the M39 Screw Mount version has no preset diaphragm installed onto. Whether the same manual diaphragm for the LSM has been used as Nikon own early version has not been confirmed previously but as the M39 Leica SM version has a very different look from pictures shown in most publications and/or literature (see below for a series of the LSM version by Kelvin LI) . So, personally, I would think such possibility strongly exist. Next, please take note that Nikon had also introduced a
fixed aperture F-mount Reflex-Nikkor 500mm f/5.0 Mirror lens in 1961 and SHOULD NOT be mixing up with this variable-aperture telephoto lens. i.e. The Mirror-Nikkor has only a fixed f/5.0 aperture. Controlling aperture of that Mirror lens is via use Neutral Density Filters or alternating film speed/types. Partly this was one of the main reason why the rangefinder S-mount model was so low in production figure with the debut of the F-mount Reflex Mirror Nikkor lens.

Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras in original box and packing
NOTE:- Recently, with a stroke of luck, Kelvin LI, a long time active Ebayer who specializes in collectible cameras had presented a rare LSM Nikkor-T 50cm f/5.0 in his collectible auction. With permission, I am compiling the said lens here for all Nikon enthusiasts to share the thought I felt earlier. This lens has a S/N 647099

(
Still available as of 04.2008)

Credit: Images at the left courtesy of Mr. Kelvin LI from his popular gokelvincameras @Ebay Store which retails for many hard-to-find Nikon, canon, Contax oldies. Image Copyright © 2008. All rights reserved. Please respect the visual property of the contributing photographer.
Leica M39 LSM version of the old, early version of Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras

Tripod collar for LSM version 500mm f/5.0 Nikkor

Nikkor-T.C Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras

Lens mlunt of Nikkor LSM 500mm f/5.0

Early wooden box for the Leica Mount Nikkor 50cm f/5

Clamping knob on the old Nikkor 500mm lens

Front lens tube section

Distance scales on the Old Nikkor 500mm f/5.0

Seuper large size tripod collar found on the LSM RF nikkor lens

Credit: Images of this rare, early version Nikkor-T.C 50cm f/5.0 in LSM courtesy of Mr. Kelvin LI from his popular gokelvincameras@Ebay Store. Image Copyright © 2008. All rights reserved.

The Nikkor-T.C 50cm f/5.0 LSM version has a few areas which are quite different from the models that has the Nikon's own Preset Diaphragm Mechanism installed. I wouldn't think Nikon will specifically released a version with a different design in Leica SM i.e. assuming just like what Nikon did for the Nikkor-Q 25cm in M39 SM which wasn't supplied with the preset mechanism, but you can compare the lens tube section and even the wooden box that was supplied with the lens (as standard accessory) where they are so different from version in Nikon S-mount that followed (See below for another view of a version with Preset diaphragm control). Another point of interest is:- I do notice from the few photos that I gathered over the years on the Nikkor-T 50cm lens (as well as pictures used in the respective publications from the few Guru collectors such as R.Rotoloni and P.Brackzo etc. ) that virtually all of them were coated as indicated from the lens data as Nikkor-T.C 1:5 f=50cm.

The on-lens f/5.0 maximum aperture can be considered as moderately fast in enabling available light photography. And when combining it with a faster ASA film type, it may provide good shutter speed options to prevent possible action blur which can be quite common in super-telephotography. By the way, this lens was also one of the only few Nikkor lenses that ever provided with a small
f/45 minimum aperture (It provides a useful DOF scales referencess: f/45, f/22, f/16 and f/8.0). By combining this extended level of depth of field control options and its strong perspective compression optical characteristic, all these elements may be useful for certain kind of creative and/or special application photography.


A lovely view from the rear section for this Nikon (Nippon Kogaku K.K.) RF Nikkor-T.C 1:5.0 f=50cm (500mm f5.0) super telephoto lens in original wooden box (Second version)
A preset version w/S/N 647054 of the Nikkor-T 50cm f/5.0 telephoto lens with an original Nippon Kogaku K.K. wooden box.

Credit: Image courtesy of Mr. Mike Otto <staff@ pacificrim camera.com> URL: Pacific Rim Camera, who also operates a popular Ebay Store. Image Copyright © 2003. All rights reserved. Pacific Rim camera can also be reached by mail to: Pacific Rim Camera 1965 Davcor St SE Salem, OR 97302 (503) 370-7461 Fax number is (503) 370-8801

Extra large lens hood for Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras Wooden box containing the Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras Tripod collar in enlarged size for the Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras
Front section lens element on the old, RF Nikkor telephoto Unidentified plate/labels on the Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras Rear lens mount section of the Nikon RF Nikkor 500mm f/5.0 telephoto lens
Credit: All image(s) displayed here courtesy of CamRon8888@Ebay® where his EBAY STORE often list many hard to find used photographic equipment. Image(s) copyright © 2008. All rights reserved. Please respect the visual property of the contributing photographer. (Still available as of 04.2008)

This is a very huge and heavy lens. As you can see a typical setup from the illustrative photo below with the customary combination in a RF Nikon body, Reflex Housing (shown is a Model 2 Unit) where even the dedicated lens hood is an extra-long type. Neither the weight factor at approx. 8.5kg would suggest this is a very friendly lens to hang aorund with. A very steady and rigid tripod is a MUST and Nikon had the tripod socket also in a extended scale in diameter. You can literally forget about handheld shooting unless you have special interest in "blur and movement" photography... Some Japanese Nikon collectors had suggested (as well as R.Rotoloni) total production is less than 300 units. I think it has both a lot to do with the price tag it came along as well as finding good, vast application for this extremely rare piece of Nikkor super telephoto lens. Today, even after half a century, the scenario also remains the same - except for small group of Nikon collectors / researchers / camera historian who may be specifically wish to re-building up a complete lens library of the glorious old days of Nikon rangefinder system.


Asuperb view of the setup with Nikon SP in Nikon Reflex Housing mounted with a Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras + lens hood
Credit: A lovely picture of this Nikkor-T 50cm f/5 lens with Nikon Reflex Housing Model was scanned and retouched from Nikon RF Magazine Photographer: ®

Basic Technical Specification for Nikkor-T.C 1:5.0 f=50cm (RF Nikkor-T.C 500mm f/5.0) super telephoto lens:

Lens Mount
: Nikon Bayonet S-mount for RF models (Short Mount)
Compatible Models: Nikon S-Series rangefinder models via
Nikon Reflex Housing; Nikon F/Nikkormat via N-F Tube
Focal Length: 500mm (50cm);
Maximum / Minimum Aperture: f/5.0 / f/45
Angle of View: 5
° diagonal (2.5 V x 4 H)
Optical Construction: 3 elements in 3 groups-

The tripod collar of the mid section on the lens tube on the 50cm f/5 RF Nikkor
Minimum Focusing Distance: 8m (approx. 24.5 ft) ~ OO
Depth of Filed Scales: f/45, f/22, f/16, f/8.0; Infra Index: Provided

Depth of Field Tables for Nikkor-T 50cm f/5 (500mm f/5.0) rangefinder version Super telephoto Nikkor lens


Depth of Field Tables for Nikkor-T 50cm f/5
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232k Jpeg File)
Credit: Images at the left courtesy of Mr. Kelvin LI from his popular gokelvincameras @Ebay Store. Image Copyright © 2008. All rights reserved.

Optical diaphragm / design on the Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras

Optical Design / Diaphragm as well as structural dimension for the Nikkor-T.C 1:5 f=50mm (RF Nikkor-T.C 500mm f/5.0) telephoto lens

Lens dimension illustration for Nikon (Nippon Kogaku KK) 1:5 f=50cm (RF Nikkor 500mm f/5.0) Super Telephoto lens for Rangefinder Nikon cameras

Lens tube adn control features found on the RF Nikkor 500mm lens
(Marked values: Plain color display system for both Feet: starts from 6000, 1000, 400, 200 .. & Metres: 2000, 600, 300, 150 ...
Magnification ratio
: 10X;
Filter Attachment Size
**: 110mm (P=0.75)
Dimension:
448.3mm; with N/F attached:- approx. 557.1mm
Weight (body only)
: 8,460g (approx. 298-3/8oz).
Standard / Optional Accessories: Nikon Reflex Housing, Front/Rear lens cap, Metal Lens hood; optional optical filters etc.; N-F tube/adapters for Nikon SLR cameras

Credit: Images at the left courtesy of Mr. Kelvin LI from his popular gokelvincameras @Ebay Store which retails for many hard-to-find Nikon, canon, Contax oldies. Image Copyright © 2008. All rights reserved. Please respect the visual property of the contributing photographer.
   
Other Information: Possible manual Diaphragm control for Nikon but LSM version has not preset diaphragm control ring; on-lens Tripod socket provided. Serial Numbering References:- from 647000~647248 (less than 300 Units*). Ref: Mr. Robert Rotoloni, author of An Illustrated History of Nikon Rangefinder Cameras. * Japan Nikon S-series magazine had also indicated less than 300 units were being produced.

Back | NEXT | 2/2 Also compare this Nikkor-T 50cmm f/5.0 with the F-mount Reflex-Nikkor / Mirror-Nikkor 50cm f/5.0 OR proceed to the S-mount Reflex-Nikkor 100cm f/6.3 Telephoto lens section

Part One - Nikkor-T 1:4.5 f=35cm | Part Two - Nikkor-T.C 1:5.0 f=50cm

W-Nikkor-O 1:4 f=2.1cm | W-Nikkor.C 1:4 f=2.5cm | W-Nikkor.C 1:3.5 f= 2.8cm | W-Nikkor.C 3.5cm lens Group (3.5/2.5/1.8) | Stereo-Nikkor 1:3.5 f=3.5cm | 5cm (50mm) lens group | RF Micro-Nikkor 1:3.5 f=5cm | Nikkor-P.C 1:2 f=8.5cm lens group / Nikkor-S.C 1:1.5 f=8.5cm lens group | Nikkor-P.C 1:2.5 f=10.5cm lens group / Nikkor-T 1:4 f=10.5cm | Nikkor-Q.C 13.5cm lens group: 135/4, 135/3.5 Early / Last Version, 135/4 Bellow lens | Nikkor-H 1:2.5 f=18cm | Nikkor-Q 1:4 f=25cm | Nikkor-T 1:4.5 f=35cm | Nikkor-T.C 1:5 f=50cm | Reflex-Nikkor 100cm f/6.3

System Accessories for Nikon Rangefinder cameras
Optical Finders (4 parts):-
Fixed Focal length Finders (index page): 2.1cm, 2.5cm, 2.8cm, 3.5cm, 35cm Stereo, 5cm, 8.5cm, 10.5cm, 13.5cm | Variframe / Varifocal / Sport-frames | Nikon Reflex Housing

Nikon S36/S72/S250 Motor Drives / S36 Manual | light meters | Nikon RF Flash/Speedlights | Close-up photography / Repro Copy Outfit / Nikon Bellow Focusing Device (in progress) | Cases/Compartments | Lens & body caps, Lens Hoods/shades, Original Price Lists | packaging/boxes

Instruction Manuals

Related info:- Main index page for Leica/Leitz | Contax/Carl Zeiss | Seiki Kogaku (Canon)

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Credit:- Special thanks to all the contributors of images and content which made up the basis of the site. Note:certain content and images appeared in this site were either scanned from official marketing leaflets, brochures, sales manuals or publications published by Nikon over the years 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 trade name of Nikon Corporation Inc., Japan. Site made with an Apple G5 IMac.