Pentax Q7 vs Sony A7R III

Lets look much closer at the Pentax Q7 and Sony A7R III, one is a Entry-Level Mirrorless and the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There is a significant difference among the image resolutions of the Q7 (12MP) and A7R III (42MP) and the Q7 (1/1.7") and A7R III (Full frame) come with totally different sensor sizes.

Photography Glossary

The Q7 was released 5 years before the A7R III which is a fairly sizable gap as far as camera tech is concerned. The two cameras offer different body type with the Pentax Q7 being a Rangefinder-style mirrorless camera and the Sony A7R III being a SLR-style mirrorless camera.

Before delving in to a comprehensive comparison, below is a brief synopsis of how the Q7 scores against the A7R III with regard to portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Pentax Q7 and Sony Alpha A7R III. The complete galleries are available at Pentax Q7 Gallery and Sony A7R III Gallery.

If you are intending to travel with your camera frequently, you are going to need to think about its weight and volume. The Pentax Q7 has got exterior measurements of 102mm x 58mm x 34mm (4.0" x 2.3" x 1.3") with a weight of 200 grams (0.44 lbs) while the Sony A7R III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs).

Compare the Pentax Q7 and Sony A7R III in the all new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you have attached at the time. Following is the front view size comparison of the Q7 and the A7R III.

Taking into account size and weight, the portability grade of the Q7 and A7R III is 92 and 63 respectively.

Often, its difficult to visualise the difference in sensor dimensions just by checking out technical specs. The picture below will help offer you a more clear sense of the sensor measurements in the Q7 and A7R III.

As you can tell, the two cameras offer different megapixel count and different sensor dimensions. The Q7 featuring a smaller sensor will make achieving shallow depth of field more challenging and the Sony A7R III will produce greater detail as a result of its extra 30 Megapixels. Higher resolution will also enable you to crop photographs a little more aggressively. The more aged Q7 will be behind with regard to sensor technology.