Learn how to use rectilinear and curvilinear wide-angle lenses on your Canon EOS 7D, 5D, 550D or Rebel T2i DSLR camera. This brief video tutorial from the folks at Butterscotch will teach you everything you need to know. For more information, including detailed, step-by-step instructions, and to get started using wide-angle lenses on your Canon DSLR yourself, take a look.
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