Nikon AF-S Teleconverter TC-20E III

Opet jedan novitet u Nikonovom stožeru. Ovaj puta se radi o 2x tele konverteru AF-S TC-20E III koji je prvi na svijetu s asferičnim elementima leća. Novi AF-S tele konverter TC-20E III je dizajnirani u cilju što bolje “komunikacije” s cijelim spektrom NIKKOR telephoto objektiva, gumene brtve na kontaktima i spojevima, a poslovično za Nikon, napravljen je za malo “jače” fotografe sa velikim gumbima koji su upotrebljivi i sa rukavicama na rukama.

Tele konverter, koji se stavlja između tijela i objektiva gubi otvor zaslona, odnosno svijetlo za samo 2 koraka, ali zato ostaje pri minimalnoj udaljenosti za fokusiranje dok s druge strane duplo povećava funkcionalnosti objektiva.

Optički gledano radi se o vrlo kompleksnom dizajnu sa sedam elemenata (uključujući i asferički) grupiranih u 5 grupa. U prodaju dolazi 29. siječnja 2010. godine i to po predloženoj cijeni od 449,99 funti, odnosno 533,00 dolara.

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Nikon Press Release

NIKON INTRODUCES THE AF-S TELECONVERTER TC-20E III: CLASS LEADING IMAGE QUALITY FOR NIKKOR TELEPHOTO LENSES

Sales start date: 29th January 2010

Nikon UK is launching the new AF-S TELECONVERTER TC-20E III, the world?s first teleconverter with an aspherical lens element. With a completely new optical design, the compact new teleconverter offers class leading image quality for wildlife and sports photography.

Zurab Kiknadze, Product Manager for Lenses, Accessories and Software, Nikon Europe says: ?The ground breaking optics in the new AF-S TELECONVERTER TC-20E III allow photographers to extend the reach of their NIKKOR telephoto lens with the confidence that there will be no comprises on image quality.

World?s first teleconverter with aspherical lens element

The AF-S TELECONVERTER TC-20E III is the world’s first teleconverter with an aspherical lens element, which delivers brilliant image quality in a compact package. Completely compatible with the latest VR, autofocus and metering coupling systems, the AF-S TELECONVERTER TC-20E III is a ?must have? addition to any sports or wildlife photographer’s kit.

Built for professional demands

The new AF-S TELECONVERTER TC-20E III is designed to provide a seamless fit with the NIKKOR range of compatible telephoto lenses, and features rubber seals for body mount, tough release mechanism for intensive use and an oversized button for fast removal with gloved hands. It comes with newly designed caps and a practical storage pouch to protect it when not in use.

About teleconverters

Teleconverters are attached between the camera body and telephoto lens to multiply focal length without affecting closest focusing distance. This magnification factor comes at the cost of reduced light transmission which reduces the effective minimum aperture of the lens in use. The AF-S TELECONVERTER TC-20E III reduces aperture by two stops. So when attached to an f/2 aperture lens (such as the AF-S VR 200mm f/2G) the minimum aperture becomes f/4.

Specifications
Max/min aperture
Reduces by 2 stops
Lens construction
7 elements in 5 groups (one Aspherical lens)
Closest focusing distance
Same as that of a prime lens
Maximum reproduction ratio
Double that of a prime lens
Supplied accessories
Teleconverter Cap BF-3A, Rear Lens Cap LF-1, Flexible Lens Pouch CL-0715
Diameter x length
Approx. 66 x 46mm/2.6 x 1.8 in.
Weight
Approx. 330g/11.6 0z