Sigmas 200-500mm f/2.8 (or 400-1000mm f/5.6) behemoth.(Credit: Sigma)
LAS VEGAS--Riddle me this: What's green, is 28.6 inches long, weighs 34.6 pounds, and wears a custom-fitted hood?
The answer: a mammoth supertelephoto zoom that Sigma announced this week at the Photo Marketing Association trade show here. The product is geared for photographing wildlife, sports, and astronomical objects.
The lens, called the APO 200-500mm F2.8/400-1000mm F5.6 EX DG, has a 200-500mm zoom range and an f/2.8 aperture that's very wide for this class of lens. It also comes with an extender that pushes the range to 400-1000mm but reduces the aperture to f/5.6, Sigma said. To reduce chromatic aberration, it uses three special low-dispersion glass elements and three extraordinary low-dispersion glass elements.
The lens has a dedicated lithium-ion battery to power the autofocus, zoom, and an LCD display that shows the zoom setting. And a slot near the camera end can be used to insert filters.
Sigma, one of the better-known manufacturers of third-party lenses for SLRs, said the lens will be available for Canon, Nikon, and its own SLR cameras. However, it didn't discuss price or availability.
And don't get too attached to its green color. Sigma cautioned that the camera's appearance is "subject to change without notice."
Sigmas 200-500mm f/2.8 (or 400-1000mm f/5.6) behemoth.(Credit: Sigma)
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