Pentax K-5 vs Sony A100

In this article, we will be contrasting the Pentax K-5 and Sony A100, one is a Advanced DSLR and the latter is a Entry-Level DSLR by manufacturers Pentax and Sony. There exists a sizeable gap among the sensor resolutions of the K-5 (16MP) and A100 (10MP) but they enjoy the same exact sensor size (APS-C).

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The K-5 was unveiled 4 years after the A100 which is a fairly large gap as far as camera technology is concerned. Both of the cameras offer different body type with the Pentax K-5 being a Mid-size SLR camera and the Sony A100 being a Compact SLR camera.

Before diving through a thorough comparison, below is a short summary of how the K-5 scores versus the A100 with regard to portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Pentax K-5 and Sony Alpha DSLR-A100. The full galleries are viewable at Pentax K-5 Gallery and Sony A100 Gallery.

In case you're looking to travel with your camera regularly, you'll have to think about its weight and dimensions. The Pentax K-5 enjoys outer dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") with a weight of 740 grams (1.63 lbs) whilst the Sony A100 has dimensions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") along with a weight of 638 grams (1.41 lbs).

Take a look at the Pentax K-5 and Sony A100 in the all new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you use at the time. Following is the front view size comparison of the K-5 vs the A100.

Looking at dimensions and weight, the portability score of the K-5 and A100 is 60 and 64 respectively.

Quite often, it is difficult to imagine the contrast in sensor dimensions only by seeing a spec sheet. The pic below will offer you a more clear sense of the sensor dimensions in the K-5 and A100.

Clearly, both of the cameras enjoy the same exact sensor sizing albeit different resolution. You should expect the Pentax K-5 to provide more detail having an extra 6MP. Higher resolution will also help you crop photographs far more aggressively. The more recent K-5 provides an edge when it comes to sensor technology.