Pentax K-3 III vs Pentax K20D

Its time to look closer at the Pentax K-3 III versus Pentax K20D, both Advanced DSLR digital cameras and both are produced by Pentax. There is a considerable difference between the resolutions of the K-3 III (26MP) and K20D (15MP) but both cameras provide the identical sensor sizing (APS-C).

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The K-3 III was launched 12 years later than the K20D and that is quite a large difference as far as tech is concerned. Both cameras feature the same body design (Mid-size SLR).

Before delving straight to a detailed comparison, here is a brief synopsis of how the K-3 III matches up versus the K20D with respect to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Pentax K-3 Mark III & Pentax K20D. The complete galleries are available at Pentax K-3 III Gallery & Pentax K20D Gallery.

For those who are going to lug around your camera regularly, you're going to have to consider its weight and dimensions. The Pentax K-3 III has exterior measurements of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") along with a weight of 820 grams (1.81 lbs) and the Pentax K20D has dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

Analyze the Pentax K-3 III versus Pentax K20D in our completely new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will change depending on the lens you use during that time. Below is a front view size comparison of the K-3 III compared to the K20D.

Considering size and weight, the portability score of the K-3 III and K20D is 58 and 59 respectively.

Usually, it's hard to envision the difference between sensor measurements simply by checking specifications. The graphic underneath will help provide you a better sense of the sensor measurements in the K-3 III and K20D.

To sum up, each of the cameras feature the identical sensor size albeit not the same MP. You can expect the Pentax K-3 III to resolve more detail utilizing its extra 11MP. Higher resolution will also let you crop photographs way more aggressively. The more modern K-3 III is going to have an edge when it comes to sensor technology.