Pentax K10D vs Sony A7R III

Its time to look much closer at the Pentax K10D and Sony A7R III, one is a Advanced DSLR and the latter is a Pro Mirrorless by companies Pentax and Sony. There is a sizeable difference between the resolutions of the K10D (10MP) and A7R III (42MP) and the K10D (APS-C) and A7R III (Full frame) possess totally different sensor dimensions.

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The K10D was brought out 12 years prior to the A7R III which is quite a large gap as far as tech is concerned. Each of these cameras offer different body type with the Pentax K10D being a Mid-size SLR camera and the Sony A7R III being a SLR-style mirrorless camera.

Before delving in to a full comparison, below is a short overview of how the K10D grades against the A7R III in regards to portability, imaging, features and an overall score.

This is a preview of the gallery photos for Pentax K10D and Sony Alpha A7R III. The entire galleries are available at Pentax K10D Gallery and Sony A7R III Gallery.

For those who are looking to carry around your camera, you have to take into account its weight and proportions. The Pentax K10D enjoys outside measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 793 grams (1.75 lbs) while the Sony A7R III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 657 grams (1.45 lbs).

Check the Pentax K10D and Sony A7R III in the new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have attached at that time. Underneath is the front view overall size comparison of the K10D against the A7R III.

Factoring in size and weight, the portability score of the K10D and A7R III is 59 and 63 respectively.

Usually, it is very tough to see the difference between sensor sizes purely by reviewing specs. The image underneath should give you a clearer sense of the sensor measurements in the K10D and A7R III.

As you can plainly see, each of the cameras enjoy different megapixels and different sensor sizes. The K10D featuring a tinier sensor will make achieving shallower depth of field trickier and the Sony A7R III will deliver more detail having its extra 32 Megapixels. Higher resolution will help you crop shots far more aggressively. The more aged K10D is going to be behind with regard to sensor innovation.