Bought for my Nikon D5000, the battery capacity is greater on paper (1800 mah against 1080 for the Nikon), however this battery gives me the feeling of holding as long. I have not looked at the number of shots, but with the battery Nikon I am always amazed that the 3 bars are still remaining while with it that I find myself fairly quickly with 2 bars. But it still works very well in extra battery time to recharge the other