Samsung GX-20 vs Sony A7 III

Here is a extensive review of the Samsung GX-20 and Sony A7 III, one being a Advanced DSLR and the other is a Pro Mirrorless by companies Samsung and Sony. There exists a huge gap among the resolutions of the GX-20 (15MP) and A7 III (24MP) and the GX-20 (APS-C) and A7 III (Full frame) provide different sensor sizes.

Photography Glossary

The GX-20 was announced 11 years prior to the A7 III and that is a fairly significant gap as far as camera technology is concerned. Both the cameras feature different body design with the Samsung GX-20 being a Mid-size SLR camera and the Sony A7 III being a SLR-style mirrorless camera.

Before we go into a step-by-step comparison, here is a concise synopsis of how the GX-20 scores versus the A7 III in relation to portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Samsung GX-20 and Sony Alpha A7 III. The whole galleries are provided at Samsung GX-20 Gallery and Sony A7 III Gallery.

If you're aiming to carry your camera often, you will need to factor in its weight and volume. The Samsung GX-20 offers exterior measurements of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") accompanied by a weight of 800 grams (1.76 lbs) and the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 650 grams (1.43 lbs).

Check out the Samsung GX-20 and Sony A7 III in the new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you are working with at that time. Following is a front view measurements comparison of the GX-20 vs the A7 III.

Factoring in dimensions and weight, the portability rating of the GX-20 and A7 III is 58 and 63 respectively.

Typically, it is very difficult to imagine the gap in sensor sizing only by going through a spec sheet. The graphic here might provide you a stronger sense of the sensor sizing in the GX-20 and A7 III.

Clearly, both cameras feature different resolutions and different sensor sizing. The GX-20 using its smaller sensor is going to make shooting shallower depth of field tougher and the Sony A7 III will provide greater detail with its extra 9MP. Greater resolution will also let you crop pics way more aggressively. The older GX-20 will be behind in sensor innovation.