Panasonic GX850 vs Pentax K-S1

The following is a in depth review of the Panasonic GX850 and Pentax K-S1, former is a Entry-Level Mirrorless while the other is a Advanced DSLR by brands Panasonic and Pentax. The sensor resolution of the GX850 (16MP) and the K-S1 (20MP) is fairly close but the GX850 (Four Thirds) and K-S1 (APS-C) have totally different sensor measurements.

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The GX850 was manufactured 2 years after the K-S1 which is a fairly significant difference as far as camera tech is concerned. The two cameras have different body design with the Panasonic GX850 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before getting right into a comprehensive comparison, here is a concise overview of how the GX850 scores versus the K-S1 when considering portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Panasonic Lumix DMC-GX850 & Pentax K-S1. The entire galleries are available at Panasonic GX850 Gallery & Pentax K-S1 Gallery.

For anybody who is aiming to travel with your camera frequently, you should consider its weight and size. The Panasonic GX850 enjoys external measurements of 107mm x 65mm x 33mm (4.2" x 2.6" x 1.3") having a weight of 269 grams (0.59 lbs) and the Pentax K-S1 has specifications of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") accompanied by a weight of 558 grams (1.23 lbs).

Contrast the Panasonic GX850 and Pentax K-S1 in our newest Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change dependant on the lens you choose at the time. Below is a front view proportions comparison of the GX850 versus the K-S1.

Taking into account size and weight, the portability grade of the GX850 and K-S1 is 90 and 69 respectively.

In many cases, its hard to see the difference in sensor dimensions merely by viewing specs. The image underneath will help offer you a clearer sense of the sensor measurements in the GX850 and K-S1.

All in all, both the cameras have different megapixel count and different sensor dimensions. The GX850 due to its smaller sensor will make getting shallower DOF harder and the Pentax K-S1 will result in extra detail due to its extra 4 Megapixels. Greater resolution will help you crop pics a bit more aggressively. The fresher GX850 will have an advantage in sensor innovation.