Pentax K20D vs Sony A550

Here is a comprehensive analysis of the Pentax K20D versus Sony A550, former being a Advanced DSLR while the latter is a Entry-Level DSLR by manufacturers Pentax and Sony. The image resolution of the K20D (15MP) and the A550 (14MP) is pretty well matched and they enjoy the exact same sensor sizes (APS-C).

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The K20D was manufactured 17 months before the A550 which makes the cameras a generation apart from each other. Both the cameras come with different body type with the Pentax K20D being a Mid-size SLR camera and the Sony A550 being a Compact SLR camera.

Before getting through a full comparison, below is a concise synopsis of how the K20D scores vs the A550 in relation to portability, imaging, features and an overall rating.

Following is a preview of the gallery images for Pentax K20D & Sony Alpha DSLR-A550. The entire galleries are provided at Pentax K20D Gallery & Sony A550 Gallery.

For anyone who is looking to carry your camera regularly, you should take into account its weight and size. The Pentax K20D has outer measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs) while the Sony A550 has specifications of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") accompanied by a weight of 632 grams (1.39 lbs).

Analyze the Pentax K20D versus Sony A550 in our newest Camera plus Lens Size Comparison Tool.

Always remember, the weight of an ILC will change based on the lens you are utilising during that time. The following is the front view proportions comparison of the K20D and the A550.

Taking into account size and weight, the portability rating of the K20D and A550 is 59 and 63 respectively.

Oftentimes, it is difficult to picture the contrast between sensor sizing just by looking at a spec sheet. The photograph here might give you a much better sense of the sensor sizing in the K20D and A550.

As you can see, the 2 cameras have got the exact same sensor measurements albeit different resolution. You can expect the Pentax K20D to give you greater detail due to its extra 1 Megapixels. Higher resolution will make it easier to crop pictures much more aggressively. The older K20D is going to be disadvantaged in sensor innovation.