I know that this varies for different cameras and also depends how much power your battery is capable of, but I just wanted to know. I will be on a sight-seeing tour for about half a day and I'm debating whether or not I should order a spare battery for my camera.My camera is a Nikon D5100 with a 1030mAh lithium-ion rechargeable battery. I haven't really used this camera for a long period of time so I'm not sure how long the battery lasts.
См. статью: How many hours of shooting do you usually do before your battery dies?