Pentax K-3 vs Sony A9 II

Following is a thorough overview of the Pentax K-3 and Sony A9 II, one is a Advanced DSLR and the latter is a Pro Mirrorless by rivals Pentax and Sony. The sensor resolution of the K-3 (24MP) and the A9 II (24MP) is relatively close but the K-3 (APS-C) and A9 II (Full frame) have totally different sensor sizes.

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The K-3 was launched 6 years prior to the A9 II which is a fairly serious gap as far as camera tech is concerned. Each of these cameras have different body design with the Pentax K-3 being a Mid-size SLR camera and the Sony A9 II being a SLR-style mirrorless camera.

Before diving into a complete comparison, here is a quick summary of how the K-3 matches up versus the A9 II in relation to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Pentax K-3 and Sony Alpha A9 Mark II. The complete galleries are available at Pentax K-3 Gallery and Sony A9 II Gallery.

When you are aiming to carry around your camera regularly, you should take into account its weight and dimensions. The Pentax K-3 offers 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) whilst the Sony A9 II has dimensions of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") along with a weight of 678 grams (1.49 lbs).

Analyze the Pentax K-3 and Sony A9 II in the new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are employing during that time. Underneath is a front view dimensions comparison of the K-3 versus the A9 II.

Factoring in size and weight, the portability grade of the K-3 and A9 II is 59 and 62 respectively.

Often, it can be tough to envision the difference in sensor sizes just by viewing technical specs. The picture here should give you a greater sense of the sensor sizes in the K-3 and A9 II.

As you have seen, each of these cameras provide the same resolution albeit not the same sensor sizes. The K-3 has the smaller sensor which is going to make achieving shallow DOF more difficult. The more aged K-3 will be behind with regard to sensor innovation.