Canon 40D vs Sigma SD1

Lets examine more closely at the Canon 40D and Sigma SD1, both Advanced DSLR digital cameras by competitors Canon and Sigma. There exists a crucial gap between the image resolutions of the 40D (10MP) and SD1 (15MP) but they enjoy the exact same sensor sizes (APS-C).

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The 40D was manufactured 3 years earlier than the SD1 which is quite a serious gap as far as technology is concerned. Both the cameras come with the identical body type (Mid-size SLR).

Before getting through a full comparison, below is a simple summation of how the 40D scores against the SD1 in the way of portability, imaging, features and an overall score.

Following is a preview of the gallery images for Canon EOS 40D and Sigma SD1. The entire galleries are viewable at Canon 40D Gallery and Sigma SD1 Gallery.

If you are going to carry around your camera regularly, you're going to have to factor its weight and proportions. The Canon 40D has got physical measurements of 146mm x 108mm x 74mm (5.7" x 4.3" x 2.9") with a weight of 822 grams (1.81 lbs) and the Sigma SD1 has measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") having a weight of n/a grams (0.00 lbs).

Check out the Canon 40D and Sigma SD1 in the all new Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you use at the time. Following is the front view over all size comparison of the 40D compared to the SD1.

Factoring in dimensions and weight, the portability rating of the 40D and SD1 is 57 and 77 respectively.

Typically, it's difficult to picture the difference between sensor sizes just by reviewing technical specs. The picture here might provide you a clearer sense of the sensor sizing in the 40D and SD1.

As you can tell, both of those cameras have got the exact same sensor measurements albeit different megapixels. You should expect the Sigma SD1 to offer extra detail due to its extra 5 Megapixels. Higher resolution will also help you crop shots much more aggressively. The more aged 40D is going to be behind with regard to sensor technology.