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TC11.jpg by Nikonsan ... thank you
Original Nikon Teleconverters TC-1 and TC-2

Towards the beginning of the seventies, in an effort to satisfy continuous demand of Nikon users who were aiming for a practical optical extender for Nikkor lenses, Nikon finally unveiled a working version of the TC-1 and TC-2 Teleconverters in 1976 to satisfy those needs. Both of the Extenders are similarly providing 2X magnification of focal length for the primary lens in place.

Credit: Images of the Nikkor TC-1 courtesy of Mr. Ernie Kralick® <> copyright © 2003. Image has been retouched slightly for purpose of broadcasting.
In the mean time, Nikon has already implemented some of their their fruitful research on lens coating development into production of their lenses. Among the few breakthrough - NIC (Nikon Integrated Coating) process, a proprietary multi-layer Nikon lens coating method developed by Nikon with secretive formula applied on each glass-to-air surface of the optical elements, which is designed to give optimum photographic results to counter internal reflections and faithful reproduction of colors. Such a significant development has pathed the way for Nikon lens designers with a possibility to develop a high quality optical tele-extender that meets the high standards of mechanical and optical quality of the Nikkor lenses.

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However, unlike those offerings from third party manufacturers, Nikon has resorted to design two separate Teleconverters for two main groups of Nikkor lenses i.e. a version for lenses under 200mm focal length and another for telephoto above 300mm focal length as Nikon designers felt the two groups of lenses have differing optical designs in nature which may demand two types of Extenders for optimizing results to the fullest. This has resulted into the birth of TC-1 and TC-2, even if both Extenders offer similarities in their optical objectives even though their optical composition differs (7 elements in 5 groups for TC-1 and 5 elements in 5 groups for TC-2).

Two interesting aspects in the design of TC-1 and TC-2 is, both of these optical 2X Extenders were built with the old aperture coupling lug atop and they have a separate aperture control scales which printed in a distinctive red colour that can be adjusted from f/4.0 (TC-1) and f/5.6 (TC-2) to a minimum aperture value stopped-down to amazing f/64 !

Note: Images of BOTH Nikkor TC-1 and TC-2 displayed in this site are NOT to scale. The TC-2 is a larger in its overall dimension.

Nowadays, many Nikon collectors would prized the two Converters as collectors' items they are true rarities due to its short span of product cycle (especially the TC-2). Both of the devices are considered to be dedicated Teleconverters for non-Ai Nikkor lenses that work flawlessly without modification onto early Nikon SLRs such as the various non-Ai Nikon F and some of the early Nikon F2 models (and also the early Nikkormat models). Eventually, the two old Nikon 2X Teleconverters have been converted with an AI lens coupling design and other modification to conform to the new Ai metering system specification a year later in 1977.

Specification of Teleconverter TC-1

Optical Construction: 7 elements in 5 groups
Optical Characteristic: Depth of field: halve that of lens in use

tc1back1.jpg tc1back2.jpg
Applicable Nikkor lenses: Doubling primary focal length for Nikkor lenses 200mm or below EXCEPT 45mm f/2.8 GN-Nikkor and early versions of fisheye lenses (Fisheye-Nikkor 6mm f/5.6, Fisheye-Nikkor 7.5mm f/8.0, Fisheye-Nikkor 8mm f/8.0 and Fisheye-Nikkor 10mm f/5.6 OP) that require mirror Lock-up; Zoom-Nikkor 50-300 mm f/4.5* and Reflex Nikkor 500mm f/5.0.

Credit: BOTH Images Nikkor TC-1 displayed here are edited from an image mailed to me by a unidentified user (returned mail on seeking clarification of source and originality was bounced). If you are the owner of the original image, please mail me as appropriate credit should be given for such contribution.

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Closest focusing distance: Not affected on primary lens
Aperture coupling range
f/2.0 to f/32 (effectively f/4 to f/64)
Exposure Measurement:
fully automatic diaphragm, meter coupling prong for full-aperture metering
Dimensions: 65 mm dia. x 57.4 mm. length
Note: The serial number for the TC-1 is unknown thus far.

Credit: Image courtesy of Mr Mike Otto® <> 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

Specification of Teleconverter TC-2

Optical Construction: 5 elements in 5 groups
Applicable Nikkor lenses:
Doubling primary focal length for Nikkor lenses 300mm or above
EXCEPT Zoom-Nikkor 50-300 mm f/4.5*, Reflex Nikkor 500mm f/5.0
Optical Characteristic:
Depth of field: halve that of lens in use
Closest focusing distance:
Not affected on primary lens
Aperture coupling range
f/2.8 to f/32 (effectively f/5.6 to f/64)
Exposure Measurement:
fully automatic diaphragm, meter coupling prong for full-aperture metering
Dimensions: 65 mm dia. x 115 min. length Weight 290 g.
Note: according to The Nikon Handbook by Peter Braczko, the serial number for the TC-2 may have been started from 175201. Important Note: * Sometimes, certain combinations of various lenses, teleconverter(s) and focusing screen(s) used on respective Nikon SLRs may require additional exposure compensation, where applicable. The leaflet that comes along with the hardware may outlined the requirements.

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Nikon Teleconverters: TC-1 | TC-2 | TC-200 | TC-201 | TC-300 | TC-301 | TC-14 | TC-14A | TC-14B | TC-14C | TC-14E | TC-16 | TC-16A | TC-20E

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Fisheye-Nikkor Lenses - Circular | Full Frame | Ultrawides Lenses - 13mm15mm18mm20mm | Wideangle Lenses - 24mm28mm35mm | Standard Lenses - 45mm 50mm 58mm | Telephoto Lenses - 85mm105mm135mm180mm & 200mm | Super-Telephoto Lenses - 300mm 400mm 500mm 600mm 800mm 1200mm |

Nikkor Link.jpg   Special Application lenses:
Micro-Nikkor Lenses - 50mm~55mm -60mm 85mm -105mm 200mm Micro-Zoom 70-180mm
Perspective Control (PC) - 28mm 35mm PC-Micro 85mm
Dedicated Lenses for Nikon F3AF: AF 80mm f/2.8 | AF 200mm f/3.5 EDIF
Depth of Field Control (DC): 105mm 135mm
Medical Nikkor: 120mm 200mm
Reflex-Nikkor Lenses - 500mm 1000mm 2000mm
Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm
Nikon Series E Lenses: 28mm35mm50mm100mm135mm | E-Series Zoom lenses: 36~72mm75~150mm70~210mm

MF Zoom-Nikkor Lenses: 25~50mm | 28~45mm | 28~50mm | 28~85mm | 35~70mm | 36~72mm E | 35~85mm | 35~105mm | 35~135mm | 35~200mm | 43~86mm | 50~135mm | 50~300mm | 70~210mm E | 75~150mm E | 80~200mm | 85~250mm | 100~300mm | 180~600mm | 200~400mm | 200~600mm | 360~1200mm | 1200~1700mm

Tele-Converters: TC-1 | TC-2 | TC-200 | TC-201 | TC-300 | TC-301 | TC-14 | TC-14A | TC-14B | TC-14C | TC-14E | TC-16 | TC-16A | TC-20E

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

Recommended Reading Reference on Nikon cameras and Nikkor lenses | about this photographic web site

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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.