Pentax K20D vs Sony A580

The following is a complete overview of the Pentax K20D vs Sony A580, former is a Advanced DSLR while the other is a Entry-Level DSLR by rivals Pentax and Sony. The sensor resolution of the K20D (15MP) and the A580 (16MP) is fairly close and both cameras boast the same sensor size (APS-C).

Photography Glossary

The K20D was brought out 3 years before the A580 which is a fairly sizable difference as far as camera technology is concerned. Both of the cameras have different body design with the Pentax K20D being a Mid-size SLR camera and the Sony A580 being a Compact SLR camera.

Before we go into a full comparison, here is a short summation of how the K20D matches up versus the A580 for portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Pentax K20D & Sony Alpha DSLR-A580. The entire galleries are provided at Pentax K20D Gallery & Sony A580 Gallery.

In case you're intending to travel with your camera frequently, you need to think about its weight and size. The Pentax K20D features outside measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs) and the Sony A580 has specifications of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") along with a weight of 599 grams (1.32 lbs).

Examine the Pentax K20D vs Sony A580 in our completely new Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ based on the lens you have attached at the time. Below is a front view sizing comparison of the K20D vs the A580.

Looking at dimensions and weight, the portability score of the K20D and A580 is 59 and 64 respectively.

Normally, it's difficult to imagine the contrast in sensor dimensions simply by researching specifications. The picture underneath will help give you a clearer sense of the sensor sizing in the K20D and A580.

Plainly, both of these cameras provide the same sensor dimensions but different MP. You can anticipate the Sony A580 to render more detail having its extra 1MP. Greater resolution will also make it easier to crop pics more aggressively. The more aged K20D will be disadvantaged when it comes to sensor technology.