Pentax K-3 vs Sony A300

Its time to look more closely at the Pentax K-3 vs Sony A300, one being a Advanced DSLR and the other is a Entry-Level DSLR by rivals Pentax and Sony. There is a huge difference between the image resolutions of the K-3 (24MP) and A300 (10MP) but both cameras have the identical sensor size (APS-C).

Photography Glossary

The K-3 was introduced 6 years later than the A300 and that is quite a significant gap as far as tech is concerned. Each of the cameras feature different body design with the Pentax K-3 being a Mid-size SLR camera and the Sony A300 being a Compact SLR camera.

Before getting right into a in depth comparison, here is a short summary of how the K-3 scores against the A300 when considering portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Pentax K-3 and Sony Alpha DSLR-A300. The whole galleries are available at Pentax K-3 Gallery and Sony A300 Gallery.

If you're looking to carry your camera frequently, you should think about its weight and proportions. The Pentax K-3 features exterior dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs) and the Sony A300 has measurements of 131mm x 99mm x 75mm (5.2" x 3.9" x 3.0") along with a weight of 632 grams (1.39 lbs).

Compare the Pentax K-3 vs Sony A300 in the latest Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary based on the lens you have attached at the time. Following is a front view physical size comparison of the K-3 vs the A300.

Taking into account size and weight, the portability score of the K-3 and A300 is 59 and 64 respectively.

Often, it is difficult to visualize the gap between sensor sizing purely by reviewing technical specs. The photograph underneath may give you a more clear sense of the sensor dimensions in the K-3 and A300.

As you have seen, each of these cameras come with the identical sensor size but different MP. You should anticipate the Pentax K-3 to deliver extra detail using its extra 14MP. Greater resolution will also help you crop pics a good deal more aggressively. The more modern K-3 should have an advantage with regard to sensor tech.