Pentax K100D S vs Sony A100

Below, we will be comparing the Pentax K100D S versus Sony A100, both Entry-Level DSLR digital cameras by manufacturers Pentax and Sony. There is a crucial difference between the sensor resolutions of the K100D S (6MP) and A100 (10MP) but they come with the exact same sensor size (APS-C).

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The K100D S was launched 12 months after the A100 so they are of a similar generation. Both cameras come with the identical body type (Compact SLR).

Before we go in to a comprehensive comparison, below is a quick overview of how the K100D S matches up vs the A100 with regard to portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Pentax K100D Super and Sony Alpha DSLR-A100. The complete galleries are viewable at Pentax K100D S Gallery and Sony A100 Gallery.

When you are intending to travel with your camera, you need to take into account its weight and dimensions. The Pentax K100D S enjoys external measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs) whilst the Sony A100 has dimensions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") accompanied by a weight of 638 grams (1.41 lbs).

Take a look at the Pentax K100D S versus Sony A100 in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change based on the lens you have chosen at that moment. Following is the front view over all size comparison of the K100D S against the A100.

Considering size and weight, the portability grade of the K100D S and A100 is 65 and 64 respectively.

In many cases, its hard to envision the difference between sensor dimensions just by reading through a spec sheet. The image underneath will help provide you a stronger sense of the sensor sizing in the K100D S and A100.

Clearly, the two cameras have got the exact same sensor measurements albeit not the same MP. You should count on the Sony A100 to give extra detail utilizing its extra 4MP. Higher resolution can also help you crop shots much more aggressively. The newer K100D S is going to have an advantage when it comes to sensor tech.