[Martin Melchior] wanted to use an older Sigma lens with his Canon camera. The problem in trying to do so is that the camera uses a different communications protocol than the lens is expecting. But if ...
Digital Camera World on MSN
Canon’s camera IBIS is amazing! I can take sharp 2sec shots handheld - with non-IS lenses!
IBIS was big news when it first appeared, and still should be says this Canon sharp shooter ...
Digital Camera World on MSN
Canon wants to make zooms more compact. But what is a catadioptric lens?
Canon has patented a bunch of lenses with mirrors for full frame cameras and I’ve made some educated guesses why ...
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