Pentax 645D vs Sony A68

Here, we will be evaluating the Pentax 645D vs Sony A68, former is a Pro DSLR while the latter is a Entry-Level DSLR by brands Pentax and Sony. There exists a sizable gap between the resolutions of the 645D (40MP) and A68 (24MP) and the 645D (Medium format) and A68 (APS-C) provide different sensor dimensions.

Photography Glossary

The 645D was brought out 6 years prior to the A68 which is quite a significant difference as far as technology is concerned. The two cameras feature different body design with the Pentax 645D being a Large SLR camera and the Sony A68 being a Compact SLR camera.

Before diving straight to a in-depth comparison, here is a simple view of how the 645D matches up versus the A68 with respect to portability, imaging, features and an overall mark.

The following is a preview of the gallery images for Pentax 645D & Sony SLT-A68. The entire galleries are provided at Pentax 645D Gallery & Sony A68 Gallery.

For those who are going to travel with your camera regularly, you'll need to factor its weight and measurements. The Pentax 645D has got outside measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs) whilst the Sony A68 has proportions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 610 grams (1.34 lbs).

Contrast the Pentax 645D vs Sony A68 in our newest Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will change dependant on the lens you select at that time. Following is a front view overall size comparison of the 645D versus the A68.

Using dimensions and weight, the portability grade of the 645D and A68 is 50 and 64 respectively.

Normally, it is very difficult to picture the contrast between sensor dimensions purely by reading a spec sheet. The picture here may give you a better sense of the sensor measurements in the 645D and A68.

As you can see, both of those cameras come with different resolutions and different sensor dimensions. The 645D due to its bigger sensor is going to make achieving shallow DOF easier and the Pentax 645D will offer more detail having its extra 16 Megapixels. Higher resolution will also enable you to crop photographs a good deal more aggressively. The more aged 645D is going to be disadvantaged in sensor technology.