Pentax 645Z vs Sony RX1R

The following is a in-depth comparison of the Pentax 645Z versus Sony RX1R, former is a Pro 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 645Z (51MP) and RX1R (24MP) and the 645Z (Medium format) and RX1R (Full frame) enjoy totally different sensor size.

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The 645Z was released 10 months after the RX1R so they are of a similar age. Both cameras offer different body type with the Pentax 645Z being a Large SLR camera and the Sony RX1R being a Large Sensor Compact camera.

Before delving straight into a detailed comparison, below is a short highlight of how the 645Z scores against the RX1R when it comes to portability, imaging, features and an overall mark.

Following is a preview of the gallery photos for Pentax 645Z & Sony Cyber-shot DSC-RX1R. The complete galleries are available at Pentax 645Z Gallery & Sony RX1R Gallery.

If you're aiming to travel with your camera often, you will have to factor in its weight and size. The Pentax 645Z enjoys external 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 RX1R has specifications of 113mm x 65mm x 70mm (4.4" x 2.6" x 2.8") having a weight of 482 grams (1.06 lbs).

Analyze the Pentax 645Z versus Sony RX1R in our completely new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary based on the lens you have attached at that moment. The following is the front view scale comparison of the 645Z versus the RX1R.

Taking into consideration size and weight, the portability rating of the 645Z and RX1R is 49 and 79 respectively.

Oftentimes, it is very difficult to envision the gap between sensor dimensions just by checking technical specs. The image underneath will give you a much better sense of the sensor sizing in the 645Z and RX1R.

As you have seen, the 2 cameras offer different megapixel count and different sensor dimensions. The 645Z because of its bigger sensor will make achieving shallow depth of field less difficult and the Pentax 645Z will resolve extra detail as a result of its extra 27 Megapixels. Higher resolution can also let you crop photographs a little more aggressively. The more recent 645Z is going to have a benefit with regard to sensor innovation.