06-13-2015, 08:42 AM
Ok, there's a difference between a light travel system, and a does everything system. As long as a battery lasts long enough and you can top up between uses, it isn't a problem. If a single battery doesn't last long enough and you start managing multiple batteries, then fair enough a dedicated charger makes more sense there. Technically there isn't a reason you can't have both.
I don't want to drag this further off topic, but I do recognise USB offers a limited amount of power so it will make the most sense for smaller batteries only. Bigger ones could take a long time to charge. e.g. a 500mA port would require ~6 hours to charge the 7D2's battery from flat, maybe longer depending on the degree of inefficiency.
As a vague attempt to swing this back towards topic, I hope some of the A7R2 features make it into an APS-C sensor body.
I don't want to drag this further off topic, but I do recognise USB offers a limited amount of power so it will make the most sense for smaller batteries only. Bigger ones could take a long time to charge. e.g. a 500mA port would require ~6 hours to charge the 7D2's battery from flat, maybe longer depending on the degree of inefficiency.
As a vague attempt to swing this back towards topic, I hope some of the A7R2 features make it into an APS-C sensor body.
<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.