Pentax K-3 II vs Sony A390

The following is a extended assessment of the Pentax K-3 II vs Sony A390, one is a Advanced DSLR and the latter is a Entry-Level DSLR by brands Pentax and Sony. There exists a big gap between the image resolutions of the K-3 II (24MP) and A390 (14MP) but they enjoy the same exact sensor sizes (APS-C).

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The K-3 II was released 4 years after the A390 which is quite a big gap as far as technology is concerned. Both cameras offer different body type with the Pentax K-3 II being a Mid-size SLR camera and the Sony A390 being a Compact SLR camera.

Before diving straight into a comprehensive comparison, below is a simple summary of how the K-3 II matches up vs the A390 in the way of portability, imaging, features and an overall mark.

The following is a preview of the gallery photos for Pentax K-3 II and Sony Alpha DSLR-A390. The complete galleries are provided at Pentax K-3 II Gallery and Sony A390 Gallery.

When you are planning to travel with your camera regularly, you will have to consider its weight and measurements. The Pentax K-3 II enjoys physical measurements 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 A390 has proportions of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") along with a weight of 549 grams (1.21 lbs).

Contrast the Pentax K-3 II vs Sony A390 in the new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you use at the time. Below is the front view dimensions comparison of the K-3 II vs the A390.

Looking at dimensions and weight, the portability rating of the K-3 II and A390 is 59 and 66 respectively.

Sometimes, it can be hard to envision the difference between sensor dimensions just by going over a spec sheet. The picture underneath may provide you a much better sense of the sensor sizing in the K-3 II and A390.

Clearly, both the cameras enjoy the same exact sensor sizing albeit not the same MP. You should count on the Pentax K-3 II to deliver greater detail as a result of its extra 10MP. Higher resolution will also enable you to crop shots far more aggressively. The fresher K-3 II will have an advantage with regard to sensor technology.