Canon's 300D (Digital Rebel) vs 10D: Battle of the DSLRsby Stephen Caston on July 5, 2004 12:23 PM EST
- Posted in
- Digital Camera
The BatteryBefore reading the results of our battery test, we recommend you read the Testing Procedures of our Digital Camera Review Guide. We chose to use our EF 50mm f2.5 Autofocus Macro lens for both cameras. We were shooting in RAW mode on a 12X 256MB Lexar Type I Compact Flash Card. Each camera was placed on a stationary tripod and was pointed at an object on a wall during testing.
|Number of shots on a single battery charge||1,630||1,727|
As you can see, both the Rebel and the 10D performed extremely well. These numbers are well above what Canon reports (650 shots without the flash and 500 when using the flash 50% of the time). Battery life is very dependent on the type of lens you use and the way you use it. For example, if we were using a lens with IS (Image Stabilization), the battery performance would have been much lower due to the extra power needed. You would also get fewer shots per battery cycle if you were constantly using autofocus to focus near and far between shots. Another factor that can influence how long a battery will last is the frequency in which the camera is used. We did each battery test in approximately 4 hours in one sitting. However, casual shooting over a longer period of time would probably result in less shots than we were able to get.
Both the 10D and the Rebel use the same lithium-ion battery type (BP-511). One of the major reasons why battery life is so outstanding in these cameras is because DSLRs use a mirror to reflect the image onto the camera's image sensor. Because of this process, the mirror actually blocks the scene from the viewfinder during the exposure time (just like in non-digital SLRs). This means that for the Rebel and the 10D, there is no LCD monitor preview for composing the picture - you must look through the viewfinder to compose shots. Because there is no preview capability (given the nature of the mirror to intercept the image), battery life is able to last much longer than point-and-shoot cameras where the preview monitor is in heavy use.