Panasonic S1 vs Pentax K-S1

Its time to look closer at the Panasonic S1 vs Pentax K-S1, former being a Pro Mirrorless while the latter is a Advanced DSLR by competitors Panasonic and Pentax. The sensor resolution of the S1 (24MP) and the K-S1 (20MP) is pretty comparable but the S1 (Full frame) and K-S1 (APS-C) come with different sensor size.

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The S1 was unveiled 4 years later than the K-S1 and that is a fairly sizable difference as far as camera tech is concerned. Each of these cameras come with different body type with the Panasonic S1 being a SLR-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before diving straight into a detailed comparison, below is a simple summation of how the S1 matches up against the K-S1 in terms of portability, imaging, features and an overall grade.

Below is a preview of the gallery images for Panasonic Lumix DC-S1 & Pentax K-S1. The full galleries are provided at Panasonic S1 Gallery & Pentax K-S1 Gallery.

If you're aiming to lug around your camera, you should factor its weight and volume. The Panasonic S1 comes with outside dimensions of 149mm x 110mm x 97mm (5.9" x 4.3" x 3.8") accompanied by a weight of 1021 grams (2.25 lbs) and the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs).

Contrast the Panasonic S1 vs Pentax K-S1 in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will differ based on the lens you have at that time. Here is the front view proportions comparison of the S1 compared to the K-S1.

Looking at size and weight, the portability rating of the S1 and K-S1 is 54 and 69 respectively.

Often, it's tough to imagine the gap in sensor measurements merely by checking out a spec sheet. The graphic here should provide you a greater sense of the sensor sizes in the S1 and K-S1.

As you can see, both of the cameras posses different megapixels and different sensor measurements. The S1 having a bigger sensor is going to make shooting shallower depth of field easier and the Panasonic S1 will produce more detail having an extra 4MP. Higher resolution will allow you to crop pictures somewhat more aggressively. The more modern S1 provides an edge with regard to sensor innovation.