Samsung GX-20 vs Sony A7S

Following is a comprehensive review of the Samsung GX-20 and Sony A7S, one is a Advanced DSLR and the other is a Pro Mirrorless by competitors Samsung and Sony. There exists a crucial gap among the resolutions of the GX-20 (15MP) and A7S (12MP) and the GX-20 (APS-C) and A7S (Full frame) use different sensor measurements.

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The GX-20 was unveiled 7 years earlier than the A7S which is a fairly serious gap as far as camera technology is concerned. Each of these cameras come with different body type with the Samsung GX-20 being a Mid-size SLR camera and the Sony A7S being a SLR-style mirrorless camera.

Before diving through a in-depth comparison, below is a short overview of how the GX-20 scores versus the A7S in terms of portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Samsung GX-20 and Sony Alpha A7S. The full galleries are provided at Samsung GX-20 Gallery and Sony A7S Gallery.

If you are aiming to carry around your camera often, you have to think about its weight and dimensions. The Samsung GX-20 features physical dimensions 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 A7S has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 489 grams (1.08 lbs).

Take a look at the Samsung GX-20 and Sony A7S in the new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen at that time. Below is the front view dimension comparison of the GX-20 vs the A7S.

Using dimensions and weight, the portability grade of the GX-20 and A7S is 58 and 77 respectively.

More often than not, it's difficult to imagine the difference in sensor sizes just by seeing a spec sheet. The picture below will help give you a clearer sense of the sensor sizes in the GX-20 and A7S.

As you can see, both cameras have got different megapixels and different sensor sizes. The GX-20 using its smaller sensor is going to make getting shallower depth of field harder and the Samsung GX-20 will provide extra detail having an extra 3 Megapixels. Greater resolution can also allow you to crop photos much more aggressively. The more aged GX-20 will be behind with regard to sensor tech.