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| p.2 #18 · Can someone please explain this phenomenon for me. |
I can't tell to be certain without seeing a full res copy of the shot that the problem with that first shot is blur and not missed focus as another poster seems to think. I do know this though-
I don't even try, unless my ISO and f-stop are maxed WAY out to shoot people with even a shutter speed that matches the focal length. People (since they move) almost always require >1/200, and often more if you expect to get a critically sharp shot. And thats even with a wide angle lens. For longer lenses (85, 105 etc), I try to go 2x or 3x the focal length. Anything less and you can expect blur from camera shake, especially with a 36MP camera.
In my opinion, the age old rule of thumb to try for 1/FL is woefully inadequate for most situations and completely outdated for high resolution cameras.
To sum: if you got sharp shots shooting people at 1/60th with a 85mm lens with your Canon, you just got really lucky, or you have impeccable technique and statue-like subjects. You should adjust your habits. D600 is completely fine at ISO 1600 and up. Use it.