« on: December 06, 2012, 06:54:01 PM »
Roger says it's really only 175mm though: http://www.lensrentals.com/blog/2012/12/quick-resolution-tests-on-two-new-70-200s
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If Sigma can maintain this level of quality and price across more lenses, Canon might have to reconsider its pricing. Canon's near monopoly on the high end AF lens market might be coming to an end finally. Of course, this could also be a "loss leader" or gouge from Sigma. Time will tell.
OOF lights at f1.4 showing mild ringing/onion:
At f/1.4, aren't the round lights overly football-like in shape?
I know it's not supposed to be able to do that, but sometimes it does. For instance while sitting in a dark room and shooting down a well-lit hallway, it meters down the hall way with center AF point, but meters for the room when using the right-most AF point (on wall of dark room).
Yes, but that's evaluative metering weighting the exposure toward the selected AF point. It's not the same as spot metering. Does it give similar results in some situations? Yes...but then, a stopped analog clock shows the right time twice per day.
Is it possible to get it to meter using the selected AF point instead of the center of the frame?Nope unfortunately not thats the realms of 1D bodies only
But anyways, maybe that's a side effect of having a "fast" FPS with only 1 digic...
Have you never wondered if a still image DSLR would be better or cheaper?