Pentax X90 vs Sony RX100

Lets take a more detailed look at the Pentax X90 and Sony RX100, one being a Small Sensor Superzoom and the other is a Large Sensor Compact by manufacturers Pentax and Sony. There exists a huge gap among the resolutions of the X90 (12MP) and RX100 (20MP) and the X90 (1/2.3") and RX100 (1") use totally different sensor sizes.

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The X90 was launched 3 years earlier than the RX100 and that is a fairly significant gap as far as camera technology is concerned. Both of these cameras come with different body type with the Pentax X90 being a SLR-like (bridge) camera and the Sony RX100 being a Large Sensor Compact camera.

Before diving through a in depth comparison, below is a brief view of how the X90 grades against the RX100 in the way of portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Pentax X90 and Sony Cyber-shot DSC-RX100. The complete galleries are available at Pentax X90 Gallery and Sony RX100 Gallery.

In case you're intending to carry your camera, you'll need to take into account its weight and proportions. The Pentax X90 has physical measurements of 111mm x 85mm x 110mm (4.4" x 3.3" x 4.3") and a weight of 428 grams (0.94 lbs) and the Sony RX100 has measurements of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") and a weight of 240 grams (0.53 lbs).

See the Pentax X90 and Sony RX100 in the new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ depending on the lens you are using at the time. The following is the front view proportions comparison of the X90 versus the RX100.

Looking at dimensions and weight, the portability rating of the X90 and RX100 is 69 and 91 respectively.

More often than not, it is very tough to see the contrast in sensor sizing simply by checking out specifications. The visual below may give you a stronger sense of the sensor measurements in the X90 and RX100.

To sum up, both the cameras posses different megapixels and different sensor sizing. The X90 because of its smaller sensor will make getting shallower DOF trickier and the Sony RX100 will show greater detail utilizing its extra 8 Megapixels. Greater resolution will allow you to crop images somewhat more aggressively. The older X90 will be disadvantaged in sensor innovation.