Pentax K100D vs Sony RX1

Below, we will be reviewing the Pentax K100D versus Sony RX1, former is a Entry-Level DSLR while the latter is a Large Sensor Compact by brands Pentax and Sony. There is a large difference between the image resolutions of the K100D (6MP) and RX1 (24MP) and the K100D (APS-C) and RX1 (Full frame) possess totally different sensor dimensions.

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The K100D was launched 7 years before the RX1 which is quite a serious difference as far as tech is concerned. The two cameras come with different body type with the Pentax K100D being a Compact SLR camera and the Sony RX1 being a Large Sensor Compact camera.

Before going through a more detailed comparison, below is a simple overview of how the K100D matches up versus the RX1 when it comes to portability, imaging, features and an overall score.

Below is a preview of the gallery photos for Pentax K100D & Sony Cyber-shot DSC-RX1. The complete galleries are viewable at Pentax K100D Gallery & Sony RX1 Gallery.

For anybody who is looking to carry around your camera, you'll need to factor in its weight and size. The Pentax K100D offers outer measurements of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") and a weight of 660 grams (1.46 lbs) while the Sony RX1 has specifications of 113mm x 65mm x 70mm (4.4" x 2.6" x 2.8") with a weight of 482 grams (1.06 lbs).

Compare the Pentax K100D versus Sony RX1 in our newest Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change depending on the lens you select at the time. Underneath is the front view dimension comparison of the K100D vs the RX1.

Taking into account size and weight, the portability score of the K100D and RX1 is 64 and 79 respectively.

Oftentimes, it is tough to visualise the difference between sensor sizes simply by reading technical specs. The pic here should offer you a far better sense of the sensor measurements in the K100D and RX1.

As you have seen, the 2 cameras posses different megapixel count and different sensor sizes. The K100D due to its tinier sensor will make shooting shallower depth of field trickier and the Sony RX1 will offer more detail utilizing its extra 18MP. Higher resolution will also let you crop pictures somewhat more aggressively. The more aged K100D is going to be disadvantaged when it comes to sensor tech.