Pentax K-S1 vs Sony RX1

In this write-up, we are analyzing the Pentax K-S1 vs Sony RX1, one being a Advanced DSLR and the other is a Large Sensor Compact by rivals Pentax and Sony. The image resolution of the K-S1 (20MP) and the RX1 (24MP) is very similar but the K-S1 (APS-C) and RX1 (Full frame) possess different sensor sizes.

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The K-S1 was announced 19 months later than the RX1 making the cameras a generation apart from each other. Each of these cameras offer different body type with the Pentax K-S1 being a Mid-size SLR camera and the Sony RX1 being a Large Sensor Compact camera.

Before diving in to a thorough comparison, below is a simple overview of how the K-S1 grades versus the RX1 with respect to portability, imaging, features and an overall rating.

Here is a sample of the gallery pics for Pentax K-S1 and Sony Cyber-shot DSC-RX1. The whole galleries are provided at Pentax K-S1 Gallery and Sony RX1 Gallery.

For those who are aiming to carry your camera, you'll need to factor its weight and dimensions. The Pentax K-S1 offers outer measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs) while the Sony RX1 has dimensions of 113mm x 65mm x 70mm (4.4" x 2.6" x 2.8") with a weight of 482 grams (1.06 lbs).

Examine the Pentax K-S1 vs Sony RX1 in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you are working with at that time. Following is the front view measurement comparison of the K-S1 compared to the RX1.

Taking into account size and weight, the portability score of the K-S1 and RX1 is 69 and 79 respectively.

Often, it is hard to picture the difference between sensor sizing just by reviewing specifications. The graphic below may give you a much better sense of the sensor sizing in the K-S1 and RX1.

Plainly, each of the cameras offer different megapixels and different sensor sizing. The K-S1 having a tinier sensor is going to make getting bokeh tougher and the Sony RX1 will offer you extra detail with its extra 4 Megapixels. Greater resolution will also let you crop pics a little more aggressively. The more modern K-S1 provides a benefit in sensor tech.