Pentax K-500 vs Sony A7 III

Let's look a bit more closely at the Pentax K-500 versus Sony A7 III, one is a Entry-Level DSLR and the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There is a huge difference between the image resolutions of the K-500 (16MP) and A7 III (24MP) and the K-500 (APS-C) and A7 III (Full frame) offer different sensor dimensions.

Photography Glossary

The K-500 was announced 5 years earlier than the A7 III which is quite a significant gap as far as tech is concerned. Both the cameras feature different body design with the Pentax K-500 being a Compact SLR camera and the Sony A7 III being a SLR-style mirrorless camera.

Before getting straight to a in-depth comparison, here is a brief view of how the K-500 scores against the A7 III in terms of portability, imaging, features and an overall score.

This is a preview of the gallery photos for Pentax K-500 and Sony Alpha A7 III. The whole galleries are viewable at Pentax K-500 Gallery and Sony A7 III Gallery.

In case you're planning to carry around your camera, you'll have to think about its weight and proportions. The Pentax K-500 has got exterior dimensions of 130mm x 97mm x 71mm (5.1" x 3.8" x 2.8") accompanied by a weight of 646 grams (1.42 lbs) and the Sony A7 III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs).

Take a look at the Pentax K-500 versus Sony A7 III in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are using during that time. The following is a front view measurements comparison of the K-500 vs the A7 III.

Using size and weight, the portability grade of the K-500 and A7 III is 64 and 63 respectively.

Often, it's tough to picture the contrast between sensor sizes simply by reading through specifications. The picture here should provide you a far better sense of the sensor sizes in the K-500 and A7 III.

To sum up, each of the cameras come with different megapixels and different sensor sizes. The K-500 using its tinier sensor is going to make shooting shallower DOF more difficult and the Sony A7 III will give extra detail with its extra 8 Megapixels. Higher resolution will enable you to crop shots a good deal more aggressively. The more aged K-500 is going to be disadvantaged when it comes to sensor innovation.