Pentax K20D vs Sony A99

Here, we will be contrasting the Pentax K20D vs Sony A99, both Advanced DSLR digital cameras by companies Pentax and Sony. There exists a huge gap between the image resolutions of the K20D (15MP) and A99 (24MP) and the K20D (APS-C) and A99 (Full frame) have totally different sensor sizes.

Photography Glossary

The K20D was unveiled 5 years before the A99 and that is quite a significant gap as far as technology is concerned. Each of the cameras feature the same body design (Mid-size SLR).

Before getting into a detailed comparison, here is a quick overview of how the K20D matches up against the A99 in terms of portability, imaging, features and an overall rating.

This is a preview of the gallery photos for Pentax K20D and Sony SLT-A99. The full galleries are provided at Pentax K20D Gallery and Sony A99 Gallery.

If you're planning to carry your camera regularly, you'll need to consider its weight and volume. The Pentax K20D offers external measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs) whilst the Sony A99 has sizing of 147mm x 111mm x 78mm (5.8" x 4.4" x 3.1") with a weight of 812 grams (1.79 lbs).

See the Pentax K20D vs Sony A99 in the latest Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilizing during that time. Here is a front view scale comparison of the K20D and the A99.

Using dimensions and weight, the portability score of the K20D and A99 is 59 and 57 respectively.

Typically, it can be hard to envision the contrast between sensor sizing merely by going over specifications. The graphic here should provide you a better sense of the sensor sizing in the K20D and A99.

Plainly, both cameras come with different resolutions and different sensor sizing. The K20D using its tinier sensor will make achieving shallow DOF more challenging and the Sony A99 will offer more detail having an extra 9MP. Higher resolution will allow you to crop shots a good deal more aggressively. The older K20D is going to be behind when it comes to sensor technology.