Pentax 645Z vs Sony RX1

Following is a extensive analysis of the Pentax 645Z vs Sony RX1, former is a Pro DSLR while the latter is a Large Sensor Compact by brands Pentax and Sony. There exists a sizable gap between the resolutions of the 645Z (51MP) and RX1 (24MP) and the 645Z (Medium format) and RX1 (Full frame) have different sensor measurements.

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The 645Z was brought out 14 months after the RX1 which makes them a generation away from one another. Each of these cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Sony RX1 being a Large Sensor Compact camera.

Before getting right into a in depth comparison, here is a brief highlight of how the 645Z scores against the RX1 in regards to portability, imaging, features and an overall score.

This is a preview of the gallery images for Pentax 645Z & Sony Cyber-shot DSC-RX1. The entire galleries are available at Pentax 645Z Gallery & Sony RX1 Gallery.

When you are looking to carry around your camera regularly, you will want to consider its weight and size. The Pentax 645Z comes with outside measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs) whilst 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 645Z vs Sony RX1 in our brand new Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will change dependant on the lens you choose during that time. Underneath is a front view measurements comparison of the 645Z versus the RX1.

Looking at dimensions and weight, the portability grade of the 645Z and RX1 is 49 and 79 respectively.

Quite often, it's hard to picture the difference between sensor sizes merely by checking a spec sheet. The pic here should give you a much better sense of the sensor measurements in the 645Z and RX1.

Clearly, both of those cameras come with different megapixel count and different sensor sizes. The 645Z due to its bigger sensor is going to make shooting shallower depth of field easier and the Pentax 645Z will resolve greater detail having its extra 27MP. Higher resolution will enable you to crop pictures a good deal more aggressively. The fresher 645Z should have an advantage when it comes to sensor innovation.