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Sigma's 200-500mm telephoto lens is so large (2.3 feet long and 34.6 pounds) and so expensive ($26,000) that many people just can't take it seriously. Last year we shared some hilarious customer reviews that poked fun at "the green monster." If you've been wondering how the lens actually looks, works, and performs, the folks over at LensRentals recently purchased a copy of the lens for their inventory and snapped some behind-the-scenes photos of their initial tests.

This is, in fact, the proper way to carry the Nikkor 1200-1700mm f/5.6-8.0 super telephoto lens. Weighing in at …

Last week we shared the beautiful first space photo to be taken with the OmegaCAM, a 268-megapixel, 1,700-lb camera operated by the European Southern Observatory. Here are some photographs of the camera itself, which uses an array of 32 separate CCD sensors for its incredible resolution.