Pentax K-S2 vs Sony A7S III

Lets look more closely at the Pentax K-S2 and Sony A7S III, former being a Entry-Level DSLR while the other is a Pro Mirrorless by brands Pentax and Sony. There exists a large gap among the resolutions of the K-S2 (20MP) and A7S III (12MP) and the K-S2 (APS-C) and A7S III (Full frame) possess different sensor measurements.

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The K-S2 was introduced 6 years prior to the A7S III and that is a fairly serious difference as far as camera technology is concerned. Both of the cameras offer different body type with the Pentax K-S2 being a Compact SLR camera and the Sony A7S III being a SLR-style mirrorless camera.

Before delving straight into a full comparison, below is a concise view of how the K-S2 grades against the A7S III in relation to portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Pentax K-S2 & Sony Alpha A7S III. The whole galleries are viewable at Pentax K-S2 Gallery & Sony A7S III Gallery.

If you are going to carry your camera, you are going to need to factor in its weight and measurements. The Pentax K-S2 has got physical dimensions of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") with a weight of 678 grams (1.49 lbs) while the Sony A7S III has proportions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") accompanied by a weight of 699 grams (1.54 lbs).

Take a look at the Pentax K-S2 and Sony A7S III in our newest Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ depending on the lens you are utilising at that time. Below is the front view scale comparison of the K-S2 compared to the A7S III.

Looking at dimensions and weight, the portability rating of the K-S2 and A7S III is 64 and 61 respectively.

Normally, it's hard to visualize the gap in sensor sizing just by looking through specs. The photograph underneath may offer you a greater sense of the sensor sizes in the K-S2 and A7S III.

All in all, the two cameras offer different megapixel count and different sensor sizing. The K-S2 using its smaller sensor is going to make getting shallow DOF tougher and the Pentax K-S2 will provide you with greater detail using its extra 8MP. Greater resolution will also make it easier to crop images a little more aggressively. The older K-S2 will be behind in sensor technology.