graham catley
Well-known member
What I would like to see, and I suspect many other bird photographers, is a review of the Mark III with regard to AF ability on flying birds which do not fill the frame;
all these published reviews based on large, obvious running people and birds like Great Blue Herons in flight, about the equivalent of photographing a steam train or a bus, do not address the quiestion of whether the new AF system will pick up and track a small bird in flight a) against the sky when the bird is moving about up, down, side to side and away and towards you and B) when it moves in front of vegetation or other distracting backgrounds which always seems to fool my camera. A test on something like a passerine, a rapid flying, not gliding raptor, or dare I suggest a Swift would produce more camparative results than an athlete moving on a set sourse at a predictable speed; so has anyone done such a test?
all these published reviews based on large, obvious running people and birds like Great Blue Herons in flight, about the equivalent of photographing a steam train or a bus, do not address the quiestion of whether the new AF system will pick up and track a small bird in flight a) against the sky when the bird is moving about up, down, side to side and away and towards you and B) when it moves in front of vegetation or other distracting backgrounds which always seems to fool my camera. A test on something like a passerine, a rapid flying, not gliding raptor, or dare I suggest a Swift would produce more camparative results than an athlete moving on a set sourse at a predictable speed; so has anyone done such a test?