Pentax 645D vs Sony QX100

Let's look more closely at the Pentax 645D versus Sony QX100, one is a Pro DSLR and the latter is a Lens-style by competitors Pentax and Sony. There is a crucial difference between the sensor resolutions of the 645D (40MP) and QX100 (20MP) and the 645D (Medium format) and QX100 (1") have totally different sensor sizes.

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The 645D was announced 4 years prior to the QX100 which is quite a serious gap as far as tech is concerned. Both of these cameras feature different body design with the Pentax 645D being a Large SLR camera and the Sony QX100 being a Lens-style camera.

Before going straight to a in depth comparison, here is a quick synopsis of how the 645D grades versus the QX100 when considering portability, imaging, features and an overall score.

This is a preview of the gallery images for Pentax 645D and Sony Cyber-shot DSC-QX100. The whole galleries are viewable at Pentax 645D Gallery and Sony QX100 Gallery.

For anyone who is planning to carry around your camera regularly, you need to think about its weight and measurements. The Pentax 645D offers physical measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) while the Sony QX100 has proportions of 63mm x 63mm x 56mm (2.5" x 2.5" x 2.2") along with a weight of 179 grams (0.39 lbs).

Compare the Pentax 645D versus Sony QX100 in the all new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you are using at that moment. Underneath is a front view size comparison of the 645D and the QX100.

Using size and weight, the portability score of the 645D and QX100 is 50 and 92 respectively.

Often, its difficult to see the gap between sensor sizes just by checking a spec sheet. The image underneath might provide you a more clear sense of the sensor sizing in the 645D and QX100.

As you can see, each of the cameras feature different megapixels and different sensor sizes. The 645D using its bigger sensor will make getting shallower depth of field easier and the Pentax 645D will give you extra detail with its extra 20MP. Higher resolution will also help you crop shots way more aggressively. The more aged 645D is going to be behind with regard to sensor innovation.