Pentax 645D vs Pentax K-5 II

Lets examine more closely at the Pentax 645D versus Pentax K-5 II, former is a Pro DSLR while the other is a Advanced DSLR and both of them are sold by Pentax. There exists a sizable gap between the sensor resolutions of the 645D (40MP) and K-5 II (16MP) and the 645D (Medium format) and K-5 II (APS-C) feature totally different sensor dimensions.

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The 645D was brought out 4 years prior to the K-5 II which is quite a significant difference as far as technology is concerned. Each of the cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax K-5 II being a Mid-size SLR camera.

Before diving in to a in-depth comparison, below is a concise view of how the 645D scores against the K-5 II for portability, imaging, features and an overall score.

Here is a sample of the gallery pictures for Pentax 645D & Pentax K-5 II. The entire galleries are viewable at Pentax 645D Gallery & Pentax K-5 II Gallery.

If you're planning to carry around your camera, you should consider its weight and size. The Pentax 645D enjoys outside measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") along with a weight of 1480 grams (3.26 lbs) and the Pentax K-5 II has specifications of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") having a weight of 760 grams (1.68 lbs).

Take a look at the Pentax 645D versus Pentax K-5 II in our brand new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change depending on the lens you are using at the time. Underneath is the front view sizing comparison of the 645D against the K-5 II.

Looking at dimensions and weight, the portability grade of the 645D and K-5 II is 50 and 60 respectively.

Normally, it is hard to envision the contrast between sensor sizes only by looking at specs. The pic below should give you a stronger sense of the sensor measurements in the 645D and K-5 II.

All in all, both of those cameras enjoy different resolutions and different sensor sizes. The 645D featuring a larger sensor will make achieving shallower depth of field less difficult and the Pentax 645D will give more detail having its extra 24 Megapixels. Greater resolution will also make it easier to crop photos far more aggressively. The more aged 645D is going to be behind when it comes to sensor technology.