Pentax 645D vs Sony RX1

The following is a extensive review of the Pentax 645D and Sony RX1, one is a Pro DSLR and the other is a Large Sensor Compact by rivals Pentax and Sony. There is a crucial difference among the resolutions of the 645D (40MP) and RX1 (24MP) and the 645D (Medium format) and RX1 (Full frame) posses different sensor measurements.

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The 645D was released 3 years prior to the RX1 which is a fairly serious gap as far as camera tech is concerned. Both of these cameras feature different body design with the Pentax 645D being a Large SLR camera and the Sony RX1 being a Large Sensor Compact camera.

Before going straight to a in depth comparison, here is a quick summary of how the 645D scores versus the RX1 for portability, imaging, features and an overall mark.

The following is a sample of the gallery pics for Pentax 645D and Sony Cyber-shot DSC-RX1. The complete galleries are viewable at Pentax 645D Gallery and Sony RX1 Gallery.

For anybody who is planning to travel with your camera, you should factor in its weight and volume. The Pentax 645D enjoys outside measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs) while the Sony RX1 has sizing of 113mm x 65mm x 70mm (4.4" x 2.6" x 2.8") with a weight of 482 grams (1.06 lbs).

Take a look at the Pentax 645D and Sony RX1 in the latest Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with at that moment. Underneath is a front view measurement comparison of the 645D and the RX1.

Looking at size and weight, the portability score of the 645D and RX1 is 50 and 79 respectively.

Often, it's tough to imagine the difference in sensor dimensions just by looking through specifications. The pic underneath might provide you a stronger sense of the sensor sizing in the 645D and RX1.

To sum up, both of these cameras feature different megapixel count and different sensor dimensions. The 645D featuring a larger sensor is going to make achieving shallower DOF simpler and the Pentax 645D will render extra detail as a result of its extra 16MP. Greater resolution will enable you to crop photos way more aggressively. The more aged 645D will be disadvantaged with regard to sensor technology.