Pentax 645D vs Sony RX100 IV

Below, we are evaluating the Pentax 645D and Sony RX100 IV, one being a Pro DSLR and the other is a Large Sensor Compact by manufacturers Pentax and Sony. There exists a big gap among the image resolutions of the 645D (40MP) and RX100 IV (20MP) and the 645D (Medium format) and RX100 IV (1") feature different sensor size.

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The 645D was introduced 6 years earlier than the RX100 IV and that is a fairly big gap as far as camera technology is concerned. Each of these cameras come with different body type with the Pentax 645D being a Large SLR camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before delving straight into a full comparison, below is a quick synopsis of how the 645D grades versus the RX100 IV in terms of portability, imaging, features and an overall rating.

Here is a sample of the gallery pics for Pentax 645D and Sony Cyber-shot DSC-RX100 IV. The whole galleries are available at Pentax 645D Gallery and Sony RX100 IV Gallery.

In case you're planning to carry your camera regularly, you will need to take into account its weight and volume. The Pentax 645D provides external dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs) whilst the Sony RX100 IV has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") having a weight of 298 grams (0.66 lbs).

Analyze the Pentax 645D and Sony RX100 IV in the latest Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you use during that time. Here is the front view measurement comparison of the 645D versus the RX100 IV.

Taking into account dimensions and weight, the portability rating of the 645D and RX100 IV is 50 and 89 respectively.

Sometimes, its tough to picture the difference in sensor sizing simply by looking through specifications. The photograph underneath may provide you a more clear sense of the sensor dimensions in the 645D and RX100 IV.

Plainly, both cameras have got different resolutions and different sensor sizing. The 645D with its larger sensor is going to make achieving shallower DOF easier and the Pentax 645D will render more detail using its extra 20MP. Greater resolution will also enable you to crop pics much more aggressively. The older 645D will be behind with regard to sensor technology.