Pentax 645D vs Sony A99 II

Here, we will be analyzing the Pentax 645D vs Sony A99 II, former being a Pro DSLR while the latter is a Advanced DSLR by companies Pentax and Sony. The sensor resolution of the 645D (40MP) and the A99 II (42MP) is relatively comparable but the 645D (Medium format) and A99 II (Full frame) have different sensor measurements.

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The 645D was introduced 7 years earlier than the A99 II and that is a fairly big difference as far as camera technology is concerned. Both of the cameras feature different body design with the Pentax 645D being a Large SLR camera and the Sony A99 II being a Mid-size SLR camera.

Before diving straight to a full comparison, here is a quick summation of how the 645D matches up against the A99 II in regards to portability, imaging, features and an overall rating.

Following is a preview of the gallery photos for Pentax 645D & Sony Alpha A99 II. The whole galleries are available at Pentax 645D Gallery & Sony A99 II Gallery.

In case you're aiming to carry your camera, you'll need to consider its weight and proportions. The Pentax 645D features exterior dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs) and the Sony A99 II has measurements of 143mm x 104mm x 76mm (5.6" x 4.1" x 3.0") and a weight of 849 grams (1.87 lbs).

Take a look at the Pentax 645D vs Sony A99 II in our completely new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary dependant on the lens you have during that time. Below is a front view overall size comparison of the 645D against the A99 II.

Using dimensions and weight, the portability grade of the 645D and A99 II is 50 and 57 respectively.

Normally, it is very difficult to picture the difference in sensor sizing just by checking out specs. The graphic below might give you a clearer sense of the sensor sizes in the 645D and A99 II.

As you can plainly see, each of these cameras feature different megapixel count and different sensor sizing. The 645D having a bigger sensor is going to make shooting bokeh less difficult and the Sony A99 II will produce more detail using its extra 2MP. Higher resolution will also help you crop pictures way more aggressively. The older 645D will be disadvantaged with regard to sensor innovation.