Pentax K100D S vs Sony RX100

Its time to examine more closely at the Pentax K100D S vs Sony RX100, former being a Entry-Level DSLR while the latter is a Large Sensor Compact by manufacturers Pentax and Sony. There exists a substantial gap between the sensor resolutions of the K100D S (6MP) and RX100 (20MP) and the K100D S (APS-C) and RX100 (1") use different sensor sizes.

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The K100D S was announced 6 years before the RX100 and that is quite a big difference as far as technology is concerned. Each of these cameras come with different body type with the Pentax K100D S being a Compact SLR camera and the Sony RX100 being a Large Sensor Compact camera.

Before we go straight into a complete comparison, below is a concise overview of how the K100D S matches up versus the RX100 in the way of portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Pentax K100D Super & Sony Cyber-shot DSC-RX100. The whole galleries are available at Pentax K100D S Gallery & Sony RX100 Gallery.

If you're aiming to carry your camera regularly, you'll have to factor in its weight and dimensions. The Pentax K100D S offers exterior measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs) whilst the Sony RX100 has dimensions of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") along with a weight of 240 grams (0.53 lbs).

Look at the Pentax K100D S vs Sony RX100 in our brand new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will vary dependant on the lens you are working with at the time. Following is the front view physical size comparison of the K100D S compared to the RX100.

Factoring in dimensions and weight, the portability rating of the K100D S and RX100 is 65 and 91 respectively.

Quite often, its hard to visualize the difference between sensor sizing only by reviewing specifications. The visual underneath might provide you a stronger sense of the sensor sizing in the K100D S and RX100.

To sum up, both of these cameras have got different resolutions and different sensor sizing. The K100D S using its bigger sensor is going to make achieving shallow DOF simpler and the Sony RX100 will offer more detail with its extra 14 Megapixels. Higher resolution will let you crop pictures much more aggressively. The older K100D S is going to be disadvantaged with regard to sensor innovation.