Nikon Z5 vs Pentax 645Z

In this write-up, we are contrasting the Nikon Z5 and Pentax 645Z, former being a Advanced Mirrorless while the other is a Pro DSLR by rivals Nikon and Pentax. There is a sizable difference between the resolutions of the Z5 (24MP) and 645Z (51MP) and the Z5 (Full frame) and 645Z (Medium format) enjoy totally different sensor size.

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The Z5 was revealed 6 years later than the 645Z and that is quite a significant difference as far as tech is concerned. Both the cameras offer different body type with the Nikon Z5 being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before we go straight into a step-by-step comparison, below is a short introduction of how the Z5 grades against the 645Z with regard to portability, imaging, features and an overall grade.

This is a sample of the gallery pics for Nikon Z5 & Pentax 645Z. The full galleries are viewable at Nikon Z5 Gallery & Pentax 645Z Gallery.

When you are planning to lug around your camera frequently, you have to take into account its weight and measurements. The Nikon Z5 has outer dimensions of 134mm x 101mm x 70mm (5.3" x 4.0" x 2.8") having a weight of 675 grams (1.49 lbs) and the Pentax 645Z has proportions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs).

Check out the Nikon Z5 and Pentax 645Z in our completely new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will vary depending on the lens you select at that moment. Following is the front view proportions comparison of the Z5 versus the 645Z.

Factoring in size and weight, the portability grade of the Z5 and 645Z is 62 and 49 respectively.

Usually, it is very tough to envision the contrast between sensor measurements merely by reading technical specs. The photograph below might give you a more clear sense of the sensor dimensions in the Z5 and 645Z.

As you can tell, both of those cameras offer different megapixels and different sensor measurements. The Z5 with its tinier sensor will make achieving shallow DOF more challenging and the Pentax 645Z will offer more detail because of its extra 27 Megapixels. Greater resolution will also enable you to crop images a little more aggressively. The younger Z5 is going to have an advantage with regard to sensor innovation.