Ranjan wrote:
One of the things mentioned in the article was, "EVFs take up so much battery power" or something similar. Now, is it true that EVF would take up more power than the LCD screen? I thought, being smaller an EVF would be less power-hungry than an LCD showing Live View (part of the power needed for keeping the mirror up all the time, perhaps), and in a non-reflex (bridge camera etc) one where one can either use the LCD or EVF (eye level electronic).
They do use battery faster. You're driving both an EVF and a LCD, and the EVF refresh rates are so high that you can hardly tell it's an EVF. The EVF isn't just a viewer either, you have all your controls right there - live histogram for example, that has to work in real time and zoom/lock for critical focus within the frame. The backscreens do extra duty too, with touchscreen focus and shooting. These things are electronic marvels, but they need their juice. I have to keep two spare batteries instead of one like I did with DSLRs, but the batteries are physically very small too, so it isn't any real trouble, just an adjustment.