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Teleconverters TC-14

Introduced in 1978, t
he TC-14 was a result of a combination of fruitful research and thoughtful innovation from Nikon lens designers as most often the 2-stops exposure compensation required for the 2X Teleconverters on TC-200 and TC-300 has made applications of optical Extenders are not as desirable to be used in many photographic situations. In many ways, compromise has to be made which usually resulted in higher chances of blurry images caused by selection of slower shutter speeds. This is especially evident in the case of using long focal length lenses. Thus, the introduction of a 1-stop exposure compensation teleconverter is a welcoming gesture to a lot of photographers.

An amazing feat of the TC-14 Teleconverter is, it has been designed as a pancake sized optical magnification device and usable not only on a lot of super-telephoto lenses but some selective Nikkor lenses with shorter focal length can also be used without any form of mechanical nor optical adjustment with the device to achieve a 40% increase in magnification of primary focal length and only one f-stop decrease in the effective aperture. Measuring merely 64.5mm d a. x 33.5mm long and weighing only 165g, this is the lightest and the most compact teleconverter among all other available MF Nikon TC series models. Although Nikon never specified this other than indicating the teleconverter can be used with Nikkor 180mm f/2.8s ED, the teleconverter can also be used safely on some other selective Nikkor lenses such as Nikkor 135mm f/2.0s, Nikkor 135mm f/3.5s, Nikkor 180mm f/2.8, Nikkor 200mm f/2.0, Micro-Nikkor 200mm f/4.0 IF and some selective Zoom-Nikkor lenses beyond 200mm. The TC-14 was introduced as a true Ai Teleconverter and it incorporated an Ai lens coupling for automatic diaphragm and full aperture TTL metering with all Ai Nikon SLR camera bodies. Nikon Integrated Coating is treated on all its lens elements for outstanding resolution with virtually no loss in image quality. Another optical characteristic for this optical teleconverter is its high contrast and excellent color rendition provided by Nikon Integrated Coating on air-to-glass surfaces on the lens elements. In 1983, Nikon has again revised the design of the TC-14 with two versions to cater more specific use on Nikkor lenses below and beyond 200mm focal length, which resulted in the introduction of an Ai-S spec Nikon TC-14A and TC-14B Teleconverters.

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Overall, the adoption of 1.4X magnification of foal length and exposure compensation of 1-stop was a very well received move by Nikon and this has even being replicated into birth of a AF equivalent in the AF-I/AF-S TC-14E for AF-I and AF-S series of AF Nikkor lenses.

Technical Highlights: * Increases the focal length of the lens by 1.4 times. * Only one f/stop decrease in the effective aperture. * Virtually no loss in image quality on the prime lens on magnification. * Permits automatic diaphragm control and full aperture metering with Ai cameras. * Nikon Integrated Coating (NIC) increases contrast and improves color rendition. * Usable with lenses of 300mm and longer, including the Nikkor 180mm f/2.8; but it is not recommended for use with most Zoom or Reflex lenses.

Specifications of Nikon Ai Teleconverter TC-14

Usable lenses: Lenses of 300mm and longer;
NOT recommended for use with most Zoom-Nikkor or Reflex-Nikkor lenses
Lens construction: 5 elements in 5 groups; Focal length: 1.4X increase in focal length of the lens in use;
Aperture coupling range
: f/2.0 ~ f/32; Effective aperture: f/2.8 ~ f/45

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Reproduction Ratio: 1.4X of the lens in use; 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, remains unaffected
Dimensions: 64.5mm d a. x 33.5mm long (overall); 24.5mm extension from lens flange; Weight: 165g
Lens case: CL-30S hard leatherette, No. 61 soft pouch, or CP-8 plastic

Download an Image of the Optical Construction in Gif (45k) file in a new browser window

Note: 1. This teleconverter can only be used in conjunction with lenses having Al features. 2. When used with non-Ai camera bodies, exposures should be measured by the stop-down method. 3. Serial number for the TC-14 may have been started from 176121.

tc14cdata.jpg
Nikon Ai-S Teleconverter TC-14C There was a variation of this 1.4X teleconverter which was designed and sold as a dedicated Teleconverter for the high speed Nikkor 300mm f/2.0s telephoto lens.

Sharing a similar optical construction with standard version of TC-14 Teleconverter. Nikon advised the matched TC-14C for the high speed 300mm telephoto lens is not recommended to be used in conjunction with other Nikkor lenses. The TC-14C was only introduced as standard accessory for the super fast Ai-S telephoto lens late in 1984.

Specifications of Nikon Ai-S Teleconverter TC-14C

Usable lenses: ONLY serving the Nikkor 300mm f/2.0s;
NOT recommended for use with any other Nikkor lenses
Lens construction: 5 elements in 5 groups; Focal length: 1.4X increase in focal length of the lens in use
Aperture coupling range: f/2.0 ~ f/16; Diaphragm: Automatic; Reproduction Ratio: 1.4X of the Nikkor 300mm f/2.0s

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Metering: Full-aperture exposure measurement with Nikkor 300mm f/2.0s
Depth of field: Half that of the lens in use
Closest focusing distance: Same as that of the lens in use, remains unaffected

Credit: Image of this Nikkor 300mm f/2.0s lens Copyright © 2003. Christopher Boehme® Quality Camera Co. 382 Trabert Ave. Atlanta, GA 30309 <(404) 881-8700 (404) 881-9010 fax QCC Sales>

Dimensions: 64.5mm d a. x 33.5mm long (overall); 24.5mm extension from lens flange
Lens case: Supplied as standard accessory with the Nikkor 300mm f/2.0s; Weight: 165g

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. ** When used with certain lenses, there may be occasional uneven exposure if aperture is set smaller than f/11 or beyond and/or in some cases, may cause vignetting of image.

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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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Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm
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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:
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

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.