Canon 40D vs Pentax K-3 III

Here, we are evaluating the Canon 40D versus Pentax K-3 III, both Advanced DSLR digital cameras by brands Canon and Pentax. There exists a crucial gap between the image resolutions of the 40D (10MP) and K-3 III (26MP) but both cameras provide the identical sensor sizing (APS-C).

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The 40D was brought out 14 years prior to the K-3 III and that is quite a serious gap as far as technology is concerned. Both of the cameras feature the same body design (Mid-size SLR).

Before diving right into a comprehensive comparison, here is a concise summary of how the 40D matches up against the K-3 III when considering portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Canon EOS 40D and Pentax K-3 Mark III. The entire galleries are viewable at Canon 40D Gallery and Pentax K-3 III Gallery.

When you are looking to carry your camera often, you'll need to factor in its weight and size. The Canon 40D has got physical dimensions of 146mm x 108mm x 74mm (5.7" x 4.3" x 2.9") accompanied by a weight of 822 grams (1.81 lbs) and the Pentax K-3 III has specifications of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") along with a weight of 820 grams (1.81 lbs).

Compare the Canon 40D versus Pentax K-3 III in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change depending on the lens you choose at that moment. Here is a front view scale comparison of the 40D versus the K-3 III.

Looking at dimensions and weight, the portability rating of the 40D and K-3 III is 57 and 58 respectively.

Typically, it's tough to imagine the contrast between sensor sizing merely by reading through specifications. The photograph here might provide you a much better sense of the sensor sizes in the 40D and K-3 III.

Plainly, each of the cameras feature the identical sensor size but different resolution. You should anticipate the Pentax K-3 III to give more detail having its extra 16 Megapixels. Greater resolution will let you crop photos way more aggressively. The older 40D is going to be disadvantaged in sensor technology.