The Battery

Before 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.

   Digital Rebel  10D
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.

The Design The Timing Tests


View All Comments

  • hixen - Thursday, September 23, 2004 - link

    everyone looking for the "hack"
  • rapope - Thursday, September 9, 2004 - link


    I don't agree. Why wouldn't someone start with a 10D? For example, let's say that someone has a sizable investment in Canon EF L lenses and wants to make the jump to digital? The 10D/20D would be a good choice for those who own a bunch of lenses and who don't want to break the bank on a digital SLR.

    I'm currently considering making such a move. The EOS 20D would be a fine addition to my EOS-1 and EOS-3. I could decide to get a digital made around the EOS-1 at a later time.

    Whaddaya think??

  • rapope - Thursday, September 9, 2004 - link

    Nice review, very detailed, with lots of useful information. Will you be posting an update based on the newly-released 20D?

  • 511PF - Friday, July 9, 2004 - link

    I think you did an excellent job in your review. I especially enjoyed the side by side noise and color comparisons. I thought the topic was very relevant and direct comparisons between the 300D and 10D are not that common. I thought the hands-on battery review was excellent as well. Every review adds something new and different. Yours was no exception.

    I find it unfortunate that some of the people here have a need to tear other people's work down. I appreciate your work and I think you did a good job. Thanks!
  • Mday - Friday, July 9, 2004 - link

    yeah, i totally agree. First, there's no way anyone would START with the 10D. the 300D, maybe, but the person needs to be seriously wanting to get into photography. Otherwise, if all you want is a simple camera, there's no need to go with the "DSLRs". For MOST PPL, a fixed lens solution works just fine. Personally, i have outgrown a fixed lens solution, but i dont have the $$$ to get a real camera simply because the cost of lenses are $$$$$ compared to the cost of the camera.

    Besides, no one cares about any battles between the 10D and 300D. The battles are between the other $1000 DSLRs. So far, Nikon is winning imo.
  • WooDaddy - Thursday, July 8, 2004 - link

    I'd have to agree with the majority of comments here. I'm sure stephen meant well by the review but I don't feel that Anandtech is an appropiate forum to discuss digital cameras. Dpreview is hands-down the best place for camera reviews.. Mind you, it is so because of the more photographic related points made during the review. Additionally, they focus on photogs not gadget lovers. A gadget lover wouldn't even consider a 10D, though a Rebel would be in their alley. (Personally, I have a Nikon FE2 with a Acer ScanWit 2420 and Minolta G400).

    I have a feeling the MAIN reason why this whole review was posted and even considered was what was noted in the last paragraph... a hack. Hacks/overclocking/deals/best bang for you buck all are issues that Anandtech readers love, hence the weekly buyers guides, overclocking tests, etc. This would have been best located as a post in the forums somewhere. Once I read that single paragraph, the jig was up and I was even more disappointed.

    Additional 2c:
    Anyone getting started in photography shouldn't use a 10D quality camera. Grasshopper, you must first realize it is the photographer, not the camera that takes great pictures. AF, AE, etc. should be regarded as luxuries not as requirements. Once you learn how to use a manual camera (Zone method, etc), one can appreciate automatic features. Same idea with digital cameras. Start small (S410 or S50) then move up to the big boys.

    ... phew... </rant>
  • stephencaston - Wednesday, July 7, 2004 - link


    The resolution test was done in RAW mode for both cameras and then converted to JPG in PS CS with +1.0 EV applied.

    The rest of the image quality tests (including white balance) were done with both cameras reset to factory default settings and using the lowest compression JPG mode (Large/Fine 3072x2048). This allowed us to compare how both cameras process images using their default settings.
  • kaltree - Wednesday, July 7, 2004 - link

    Does anyone know if the image quality and white balance tests were shot in RAW or JPEG mode?

    Reason is the tests will be uneven. The 300D will sharpen the image slightly more causing a degradation in resolution. Also, the 300D does boost the saturation slightly. The shots need to be done in RAW only and those images need to be compared. If I missed the fine print, I apologize.

    (Canon 300D owner since August 2003)
  • broken33 - Wednesday, July 7, 2004 - link

    Dpreview does indeed offer a far more comprehensive and frankly, believable review of each of these cameras.

    I agree that you should instead focus on the computer-related issues that are involved with these kinds of cameras. It would be *GREAT* if you would post a comprehensive review of the firmware hacks for the 300D that are out there or do an overview of the various storage options that are out now. Hell, you could do a comprehensive look at performance issues with new CF cards - which ones are really worth the money and with what cameras are they best suited.
  • JetJock - Wednesday, July 7, 2004 - link

    The D-Rebel cannot compare to Nikon's D70. Check it out. It is just slightly more expensive than the D-Rebel ($100 or so) and has many more features and better design / build. Reply

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