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Showing posts with label cheap New Nikkor 400mm. Show all posts
Showing posts with label cheap New Nikkor 400mm. Show all posts

6/01/2013

New Nikkor 400mm And Matched Teleconverter

Nikon continues its long term program of upgrading its super-telephoto lenses with the introduction of a new 400mm f2.8 model. The new AF-S Nikkor 400mm f2.8 FL ED VR incorporates a number of modern lens technologies, including fluorite elements, Nikon's Nano Crystal Coat' multi coating, an electro-magnetic aperture mechanism and magnesium alloy barrel tubes. The new materials and elements result in a significant weight saving so the new 400mm weight in at 3.8 kilograms.



The optical construction comprises 16 elements in 12 groups of which two are fluorite types - with much lower dispersion properties to minimise chromatic aberrations and two are made from ED (extra low dispersion) optical glass. Other features include a meniscus protective glass with a fluorine coating for improved repeling of moisture and dust; a weatherised construction, an integrated tripod mounting collar and a nine blade diaphragm for smoother out of focus effects. The Vibration Reduction (VR) optical image stabilisation system allows for p to four stops of correction for camera shake. it has a Sports mode to allow for panning. THe minimum perture is f22 and the minimum focusing distance is 2.6 metres. A rear mounted filter compartment accepts 40.5 millimetres diameter screwthread types.

Released with the new 400mm f2.8 is the updated AF-S Teleconverter TC-14E II which is a 1.4x converter, giving a combined focal length of 560mm with a one stop reduction in the aperture to f4.0. The front and rear surfaces have the same fluorine coating as is used on the 400mm's protective glass, and the optical construction seven elements in four groups has also been designed to help minimise chromatic aberrations. OF course, the TC-14E III can be used with other AF-S Nikkors, notably the fast primes and zooms.

Both units are expected to be available locally by the end of August.


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