Pentax K-S1 vs Pentax K-r

In this write-up, we will be matching up the Pentax K-S1 versus Pentax K-r, former is a Advanced DSLR while the latter is a Entry-Level DSLR and they are both designed by Pentax. There is a sizable difference between the sensor resolutions of the K-S1 (20MP) and K-r (12MP) but they feature the same exact sensor size (APS-C).

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The K-S1 was unveiled 3 years after the K-r which is quite a significant difference as far as tech is concerned. Both of the cameras offer different body type with the Pentax K-S1 being a Mid-size SLR camera and the Pentax K-r being a Compact SLR camera.

Before diving in to a step-by-step comparison, below is a brief overview of how the K-S1 grades versus the K-r in relation to portability, imaging, features and an overall mark.

This is a preview of the gallery images for Pentax K-S1 & Pentax K-r. The full galleries are provided at Pentax K-S1 Gallery & Pentax K-r Gallery.

If you're aiming to travel with your camera often, you need to think about its weight and volume. The Pentax K-S1 has got outer dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs) and the Pentax K-r has sizing of 125mm x 97mm x 68mm (4.9" x 3.8" x 2.7") along with a weight of 598 grams (1.32 lbs).

Check the Pentax K-S1 versus Pentax K-r in our newest Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will differ dependant on the lens you have attached at that time. The following is the front view overall size comparison of the K-S1 compared to the K-r.

Looking at size and weight, the portability rating of the K-S1 and K-r is 69 and 67 respectively.

Generally, it's tough to visualise the difference between sensor dimensions purely by reading specifications. The pic underneath will give you a much better sense of the sensor sizes in the K-S1 and K-r.

To sum up, both cameras enjoy the same exact sensor sizing albeit not the same MP. You can expect the Pentax K-S1 to offer you greater detail having an extra 8 Megapixels. Higher resolution can also make it easier to crop photographs far more aggressively. The more modern K-S1 will have a benefit with regard to sensor tech.