Pentax 645Z vs Pentax K-5 II

Below, we will be analyzing the Pentax 645Z versus Pentax K-5 II, former being a Pro DSLR while the latter is a Advanced DSLR and both of them are sold by Pentax. There is a noticeable difference between the resolutions of the 645Z (51MP) and K-5 II (16MP) and the 645Z (Medium format) and K-5 II (APS-C) use different sensor sizing.

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The 645Z was revealed 11 months later than the K-5 II and they are both of a similar age. Both the cameras come with different body type with the Pentax 645Z being a Large SLR camera and the Pentax K-5 II being a Mid-size SLR camera.

Before delving in to a detailed comparison, below is a concise introduction of how the 645Z grades versus the K-5 II in regards to portability, imaging, features and an overall grade.

Here is a preview of the gallery images for Pentax 645Z & Pentax K-5 II. The full galleries are viewable at Pentax 645Z Gallery & Pentax K-5 II Gallery.

If you are looking to lug around your camera frequently, you'll need to think about its weight and volume. The Pentax 645Z has got external measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs) and the Pentax K-5 II has sizing of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") accompanied by a weight of 760 grams (1.68 lbs).

Check the Pentax 645Z versus Pentax K-5 II in our brand new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will differ depending on the lens you choose during that time. Here is the front view scale comparison of the 645Z vs the K-5 II.

Factoring in size and weight, the portability rating of the 645Z and K-5 II is 49 and 60 respectively.

Generally, it's tough to imagine the contrast between sensor measurements merely by looking at specs. The visual below will provide you a stronger sense of the sensor measurements in the 645Z and K-5 II.

As you can plainly see, both of those cameras have got different megapixel count and different sensor measurements. The 645Z having a bigger sensor is going to make getting shallower DOF less difficult and the Pentax 645Z will give you greater detail because of its extra 35MP. Higher resolution will enable you to crop shots much more aggressively. The younger 645Z provides an advantage when it comes to sensor tech.