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Nikon Teleconverter
Mark Peters : December 10th 2009 - 21:10 CET
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NikonNikon AF-S Teleconverter TC-20E III : Nikon Europe 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 it is designed to offer class leading image quality for wildlife and sports photography in a compact form factor. Zurab Kiknadze, Product Manager for Lenses, Accessories & Software, Nikon Europe says: "For many photographers using a 2x teleconverter has meant sacrificing image quality for practicality." He adds, "The ground breaking optics in the new Nikon Teleconverter are designed to offer photographers great images when they need to extend the reach of their NIKKOR telephoto lenses.

Nikon Teleconverter

Nikon Teleconverter
The AF-S Teleconverter TC-20E 3 is the world's first teleconverter with an Aspherical lens element, which delivers brilliant image quality in an easy to handle 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. The new Nikon 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.


Nikon Teleconverter 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, Rear Lens Cap, Lens Pouch
Diameter x length : Approx. 66 x 46mm/2.6 x 1.8 in.
Weight : Approx. 330g/11.6 0z

What are teleconvertors?
Teleconvertors 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 Nikon Teleconverter TC-20E III reduces aperture by two stops. So when attached to an f/2 aperture lens (such as the Nikon AF-S VR 200mm f/2G) the minimum aperture becomes f/4. The Nikon Teleconverter will begin shipping in January 2010 for an estimated price of $489,00 USD.

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