Pentax K-5 vs Sony A300

In this write-up, we will be evaluating the Pentax K-5 vs Sony A300, one is a Advanced DSLR and the latter is a Entry-Level DSLR by companies Pentax and Sony. There is a sizeable difference between the image resolutions of the K-5 (16MP) and A300 (10MP) but they enjoy the same exact sensor sizing (APS-C).

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The K-5 was introduced 2 years after the A300 which is quite a large gap as far as tech is concerned. Each of these cameras offer different body type with the Pentax K-5 being a Mid-size SLR camera and the Sony A300 being a Compact SLR camera.

Before going straight into a thorough comparison, below is a brief highlight of how the K-5 scores against the A300 in relation to portability, imaging, features and an overall mark.

Here is a preview of the gallery photos for Pentax K-5 and Sony Alpha DSLR-A300. The whole galleries are provided at Pentax K-5 Gallery and Sony A300 Gallery.

For anyone who is planning to travel with your camera often, you're going to have to consider its weight and volume. The Pentax K-5 offers external measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") and a weight of 740 grams (1.63 lbs) and the Sony A300 has sizing of 131mm x 99mm x 75mm (5.2" x 3.9" x 3.0") with a weight of 632 grams (1.39 lbs).

Analyze the Pentax K-5 vs Sony A300 in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are using during that time. Here is the front view overall size comparison of the K-5 compared to the A300.

Looking at size and weight, the portability score of the K-5 and A300 is 60 and 64 respectively.

In many cases, it can be hard to visualize the gap between sensor dimensions purely by reading specs. The image below should provide you a far better sense of the sensor measurements in the K-5 and A300.

All in all, both of those cameras enjoy the same exact sensor sizing albeit different MP. You should count on the Pentax K-5 to offer extra detail using its extra 6MP. Higher resolution will enable you to crop photographs far more aggressively. The younger K-5 provides an edge with regard to sensor technology.