The Dragonfly Telephoto Array installed in New Mexico. It presently uses 48 Canon 400mm lenses (in two arrays), but that number will be increasing by quite a bit. Image by Pieter van Dokkum, Yale ...
For most photographers, Canon’s beefy EF 400mm f/2.8L IS II lens is nothing but a pipe dream. The $10,000 telephoto combines a long focal length with a fast aperture, making it a mainstay of ...
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