Pentax ist DS2 vs Sony A7R III

Below is a extensive overview of the Pentax ist DS2 vs Sony A7R III, one being a Advanced DSLR and the latter is a Pro Mirrorless by competitors Pentax and Sony. There is a huge difference between the sensor resolutions of the ist DS2 (6MP) and A7R III (42MP) and the ist DS2 (APS-C) and A7R III (Full frame) offer different sensor sizes.

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The ist DS2 was unveiled 13 years earlier than the A7R III and that is quite a significant gap as far as tech is concerned. Both the cameras feature different body design with the Pentax ist DS2 being a Mid-size SLR camera and the Sony A7R III being a SLR-style mirrorless camera.

Before we go into a comprehensive comparison, here is a simple summary of how the ist DS2 grades vs the A7R III in the way of portability, imaging, features and an overall grade.

Following is a preview of the gallery images for Pentax ist DS2 and Sony Alpha A7R III. The full galleries are available at Pentax ist DS2 Gallery and Sony A7R III Gallery.

If you're planning to lug around your camera frequently, you'll have to factor in its weight and dimensions. The Pentax ist DS2 enjoys exterior dimensions of 125mm x 93mm x 66mm (4.9" x 3.7" x 2.6") having a weight of 605 grams (1.33 lbs) and the Sony A7R III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs).

Check out the Pentax ist DS2 vs Sony A7R III in the all new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you use at that moment. The following is a front view dimensions comparison of the ist DS2 against the A7R III.

Factoring in size and weight, the portability score of the ist DS2 and A7R III is 68 and 63 respectively.

In many cases, it is difficult to imagine the difference between sensor measurements merely by going over specs. The visual here should provide you a clearer sense of the sensor sizes in the ist DS2 and A7R III.

All in all, both cameras come with different megapixels and different sensor measurements. The ist DS2 using its tinier sensor is going to make getting shallower depth of field harder and the Sony A7R III will deliver more detail having an extra 36MP. Higher resolution will also make it easier to crop photographs a good deal more aggressively. The older ist DS2 is going to be behind when it comes to sensor innovation.