Canon 40D vs Sigma SD15

Here, we are reviewing the Canon 40D vs Sigma SD15, both Advanced DSLR cameras by brands Canon and Sigma. There exists a sizeable gap among the resolutions of the 40D (10MP) and SD15 (5MP) but both cameras boast the identical sensor sizing (APS-C).

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The 40D was brought out 3 years earlier than the SD15 and that is a fairly large gap as far as camera technology is concerned. Both cameras feature the same body design (Mid-size SLR).

Before going right into a full comparison, here is a simple summary of how the 40D scores versus the SD15 with regard to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Canon EOS 40D and Sigma SD15. The entire galleries are viewable at Canon 40D Gallery and Sigma SD15 Gallery.

For those who are aiming to carry your camera regularly, you'll need to take into account its weight and volume. The Canon 40D has got outer measurements of 146mm x 108mm x 74mm (5.7" x 4.3" x 2.9") and a weight of 822 grams (1.81 lbs) and the Sigma SD15 has sizing of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") having a weight of 750 grams (1.65 lbs).

Contrast the Canon 40D vs Sigma SD15 in the all new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at the time. Below is a front view physical size comparison of the 40D vs the SD15.

Taking into account dimensions and weight, the portability rating of the 40D and SD15 is 57 and 59 respectively.

Sometimes, it can be tough to imagine the contrast in sensor sizing merely by looking through a spec sheet. The visual below will provide you a greater sense of the sensor sizing in the 40D and SD15.

As you can see, both the cameras feature the identical sensor size but different resolution. You should anticipate the Canon 40D to render more detail having its extra 5 Megapixels. Greater resolution will also help you crop images way more aggressively. The older 40D will be disadvantaged in sensor innovation.