Pentax K20D vs Sony A330

Lets look closer at the Pentax K20D versus Sony A330, one is a Advanced DSLR and the latter is a Entry-Level DSLR by competitors Pentax and Sony. There exists a huge gap among the resolutions of the K20D (15MP) and A330 (10MP) but both cameras boast the identical sensor sizes (APS-C).

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The K20D was introduced 10 months earlier than the A330 which means that they are of a similar generation. Each of these cameras feature different body design with the Pentax K20D being a Mid-size SLR camera and the Sony A330 being a Compact SLR camera.

Before we go right into a full comparison, here is a quick summation of how the K20D matches up vs the A330 when it comes to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Pentax K20D and Sony Alpha DSLR-A330. The whole galleries are viewable at Pentax K20D Gallery and Sony A330 Gallery.

For those who are going to carry around your camera frequently, you'll need to factor in its weight and volume. The Pentax K20D has got outer measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") along with a weight of 800 grams (1.76 lbs) whilst the Sony A330 has sizing of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") accompanied by a weight of 529 grams (1.17 lbs).

See the Pentax K20D versus Sony A330 in the new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilizing at the time. Below is a front view scale comparison of the K20D versus the A330.

Factoring in dimensions and weight, the portability rating of the K20D and A330 is 59 and 67 respectively.

Sometimes, its difficult to visualize the difference in sensor sizes simply by viewing technical specs. The image below should give you a much better sense of the sensor sizing in the K20D and A330.

As you can tell, both of these cameras come with the identical sensor size albeit different megapixels. You should count on the Pentax K20D to provide you with more detail using its extra 5 Megapixels. Higher resolution will also help you crop shots a good deal more aggressively. The more aged K20D will be disadvantaged in sensor innovation.