Pentax K-S1 vs Sony A7c

Here, we will be matching up the Pentax K-S1 vs Sony A7c, one is a Advanced DSLR and the latter is a Advanced Mirrorless by manufacturers Pentax and Sony. The image resolution of the K-S1 (20MP) and the A7c (24MP) is pretty well matched but the K-S1 (APS-C) and A7c (Full frame) boast totally different sensor sizing.

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The K-S1 was unveiled 7 years earlier than the A7c which is quite a significant gap as far as technology is concerned. Both of the cameras feature different body design with the Pentax K-S1 being a Mid-size SLR camera and the Sony A7c being a Rangefinder-style mirrorless camera.

Before going straight to a detailed comparison, here is a simple summary of how the K-S1 scores against the A7c in terms of portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Pentax K-S1 and Sony Alpha A7c. The full galleries are provided at Pentax K-S1 Gallery and Sony A7c Gallery.

If you're looking to travel with your camera regularly, you will have to factor its weight and size. The Pentax K-S1 comes with physical dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") along with a weight of 558 grams (1.23 lbs) while the Sony A7c has specifications of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") along with a weight of 509 grams (1.12 lbs).

Check the Pentax K-S1 vs Sony A7c in the new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change dependant on the lens you select during that time. Underneath is a front view measurements comparison of the K-S1 versus the A7c.

Using dimensions and weight, the portability rating of the K-S1 and A7c is 69 and 78 respectively.

Typically, its hard to envision the gap between sensor dimensions purely by looking at a spec sheet. The image underneath should give you a greater sense of the sensor dimensions in the K-S1 and A7c.

As you can see, each of these cameras feature different megapixels and different sensor dimensions. The K-S1 having a tinier sensor will make achieving shallow DOF more difficult and the Sony A7c will give more detail having an extra 4 Megapixels. Higher resolution will let you crop pictures way more aggressively. The more aged K-S1 is going to be behind in sensor technology.