Pentax 645D vs Sony HX20V

In this write-up, we will be contrasting the Pentax 645D and Sony HX20V, former being a Pro DSLR while the latter is a Small Sensor Superzoom by brands Pentax and Sony. There is a considerable difference between the resolutions of the 645D (40MP) and HX20V (18MP) and the 645D (Medium format) and HX20V (1/2.3") enjoy totally different sensor sizing.

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The 645D was revealed 3 years before the HX20V and that is quite a large difference as far as tech is concerned. Both cameras offer different body type with the Pentax 645D being a Large SLR camera and the Sony HX20V being a Compact camera.

Before going in to a in depth comparison, below is a concise introduction of how the 645D matches up versus the HX20V in relation to portability, imaging, features and an overall rating.

This is a preview of the gallery photos for Pentax 645D & Sony Cyber-shot DSC-HX20V. The full galleries are provided at Pentax 645D Gallery & Sony HX20V Gallery.

When you are looking to carry your camera, you should consider its weight and size. The Pentax 645D enjoys outer measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) whilst the Sony HX20V has specifications of 107mm x 62mm x 35mm (4.2" x 2.4" x 1.4") with a weight of 254 grams (0.56 lbs).

See the Pentax 645D and Sony HX20V in our completely new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change depending on the lens you are using during that time. Underneath is the front view measurements comparison of the 645D vs the HX20V.

Looking at size and weight, the portability score of the 645D and HX20V is 50 and 90 respectively.

Generally, it is difficult to see the gap between sensor sizing simply by reviewing technical specs. The photograph here will help give you a far better sense of the sensor sizing in the 645D and HX20V.

As you can tell, the 2 cameras enjoy different resolutions and different sensor sizing. The 645D with its bigger sensor will make shooting shallow depth of field less difficult and the Pentax 645D will offer extra detail because of its extra 22 Megapixels. Higher resolution will make it easier to crop photographs far more aggressively. The older 645D is going to be behind when it comes to sensor innovation.