Panasonic GH3 vs Pentax K-S1

Here, we will be reviewing the Panasonic GH3 vs Pentax K-S1, one being a Advanced Mirrorless and the latter is a Advanced DSLR by manufacturers Panasonic and Pentax. The resolution of the GH3 (16MP) and the K-S1 (20MP) is relatively comparable but the GH3 (Four Thirds) and K-S1 (APS-C) posses different sensor measurements.

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The GH3 was unveiled 23 months prior to the K-S1 which makes them a generation apart from one another. Both of the cameras feature different body design with the Panasonic GH3 being a SLR-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before diving into a in depth comparison, here is a concise highlight of how the GH3 scores against the K-S1 in relation to portability, imaging, features and an overall rating.

This is a preview of the gallery photos for Panasonic Lumix DMC-GH3 and Pentax K-S1. The full galleries are viewable at Panasonic GH3 Gallery and Pentax K-S1 Gallery.

If you are aiming to carry your camera frequently, you need to take into account its weight and volume. The Panasonic GH3 enjoys exterior measurements of 133mm x 93mm x 82mm (5.2" x 3.7" x 3.2") accompanied by a weight of 550 grams (1.21 lbs) while the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") accompanied by a weight of 558 grams (1.23 lbs).

Analyze the Panasonic GH3 vs Pentax K-S1 in the all new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you are using during that time. Below is a front view measurement comparison of the GH3 vs the K-S1.

Taking into consideration dimensions and weight, the portability score of the GH3 and K-S1 is 66 and 69 respectively.

Quite often, it can be hard to imagine the contrast in sensor sizing merely by going through a spec sheet. The graphic here should give you a far better sense of the sensor measurements in the GH3 and K-S1.

As you can see, each of these cameras come with different resolutions and different sensor sizing. The GH3 having a smaller sensor is going to make achieving shallow depth of field tougher and the Pentax K-S1 will provide extra detail having an extra 4 Megapixels. Higher resolution will also let you crop photographs a good deal more aggressively. The older GH3 will be disadvantaged in sensor innovation.