Panasonic GX9 vs Pentax K-S1

The following is a thorough review of the Panasonic GX9 and Pentax K-S1, one is a Advanced Mirrorless and the latter is a Advanced DSLR by manufacturers Panasonic and Pentax. The image resolution of the GX9 (20MP) and the K-S1 (20MP) is relatively well matched but the GX9 (Four Thirds) and K-S1 (APS-C) use totally different sensor dimensions.

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The GX9 was announced 3 years after the K-S1 which is quite a significant gap as far as tech is concerned. Each of the cameras offer different body type with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before diving straight into a thorough comparison, below is a quick overview of how the GX9 grades vs the K-S1 when it comes to portability, imaging, features and an overall mark.

This is a preview of the gallery photos for Panasonic Lumix DC-GX9 and Pentax K-S1. The whole galleries are viewable at Panasonic GX9 Gallery and Pentax K-S1 Gallery.

For those who are planning to travel with your camera frequently, you have to factor in its weight and proportions. The Panasonic GX9 has got external measurements of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") accompanied by a weight of 407 grams (0.90 lbs) and the Pentax K-S1 has measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") accompanied by a weight of 558 grams (1.23 lbs).

Check the Panasonic GX9 and Pentax K-S1 in the all new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached at that moment. Underneath is the front view physical size comparison of the GX9 vs the K-S1.

Considering size and weight, the portability grade of the GX9 and K-S1 is 82 and 69 respectively.

Oftentimes, its difficult to visualise the gap between sensor dimensions purely by reading through specs. The pic underneath might provide you a stronger sense of the sensor sizing in the GX9 and K-S1.

As you can plainly see, both of those cameras offer the same exact resolution albeit not the same sensor dimensions. The GX9 features the tinier sensor which is going to make obtaining shallower DOF harder. The more modern GX9 is going to have an edge with regard to sensor technology.