03-09-2012, 06:20 PM
Note you don't have to fill the buffer in a single burst. Many shorter bursts with short pauses between them will also fill it up after a while.
As for 7D battery life, if I don't use flash then one battery easily lasts me a day. To me that's at least 5 hours with the camera on, 1000+ shots, with lots of IS activation and focus tracking. And my batteries are getting older now, showing 2 out of 3 blocks on health. I think having a 2nd battery is good practice, but more than that isn't necessary unless you're away from power for several days.
As for 7D battery life, if I don't use flash then one battery easily lasts me a day. To me that's at least 5 hours with the camera on, 1000+ shots, with lots of IS activation and focus tracking. And my batteries are getting older now, showing 2 out of 3 blocks on health. I think having a 2nd battery is good practice, but more than that isn't necessary unless you're away from power for several days.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.