Pentax 645Z vs Sony RX10

Following is a complete analysis of the Pentax 645Z and Sony RX10, one is a Pro DSLR and the latter is a Large Sensor Superzoom by companies Pentax and Sony. There exists a significant gap among the image resolutions of the 645Z (51MP) and RX10 (20MP) and the 645Z (Medium format) and RX10 (1") have different sensor sizes.

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The 645Z was unveiled about the same time to the RX10 so they are of a similar generation. Each of these cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Sony RX10 being a SLR-like (bridge) camera.

Before we go right into a detailed comparison, here is a short synopsis of how the 645Z scores vs the RX10 when it comes to portability, imaging, features and an overall score.

Here is a preview of the gallery photos for Pentax 645Z and Sony Cyber-shot DSC-RX10. The full galleries are available at Pentax 645Z Gallery and Sony RX10 Gallery.

If you're planning to carry around your camera regularly, you need to factor in its weight and measurements. The Pentax 645Z provides outer measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs) while the Sony RX10 has proportions of 129mm x 88mm x 102mm (5.1" x 3.5" x 4.0") with a weight of 813 grams (1.79 lbs).

See the Pentax 645Z and Sony RX10 in the all new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are using at the time. Here is a front view sizing comparison of the 645Z compared to the RX10.

Taking into account dimensions and weight, the portability rating of the 645Z and RX10 is 49 and 58 respectively.

Normally, it can be hard to picture the contrast in sensor sizes merely by viewing technical specs. The image below may offer you a more clear sense of the sensor measurements in the 645Z and RX10.

As you have seen, both cameras come with different resolutions and different sensor sizes. The 645Z having a bigger sensor is going to make getting shallow DOF easier and the Pentax 645Z will provide you with extra detail having an extra 31 Megapixels. Higher resolution can also let you crop photographs a good deal more aggressively.