Nikon Z7 II vs Pentax 645Z

On this page, we will be looking at the Nikon Z7 II versus Pentax 645Z, former is a Pro Mirrorless while the latter is a Pro DSLR by companies Nikon and Pentax. The image resolution of the Z7 II (46MP) and the 645Z (51MP) is relatively comparable but the Z7 II (Full frame) and 645Z (Medium format) have totally different sensor sizing.

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The Z7 II was announced 6 years after the 645Z which is a fairly significant difference as far as camera tech is concerned. Both cameras have different body design with the Nikon Z7 II being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before delving straight to a step-by-step comparison, here is a concise overview of how the Z7 II scores vs the 645Z in the way of portability, imaging, features and an overall score.

Here is a preview of the gallery photos for Nikon Z7 Mark II & Pentax 645Z. The whole galleries are available at Nikon Z7 II Gallery & Pentax 645Z Gallery.

If you're planning to carry around your camera, you will have to consider its weight and proportions. The Nikon Z7 II comes with external dimensions of 134mm x 101mm x 70mm (5.3" x 4.0" x 2.8") with a weight of 705 grams (1.55 lbs) while the Pentax 645Z has measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs).

Analyze the Nikon Z7 II versus Pentax 645Z in our completely new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change depending on the lens you choose at the time. Following is a front view proportions comparison of the Z7 II vs the 645Z.

Taking into account size and weight, the portability score of the Z7 II and 645Z is 61 and 49 respectively.

Oftentimes, its difficult to see the gap in sensor sizes simply by going through a spec sheet. The pic below might offer you a stronger sense of the sensor dimensions in the Z7 II and 645Z.

As you can see, both cameras provide different megapixels and different sensor sizes. The Z7 II with its smaller sensor will make shooting shallow DOF harder and the Pentax 645Z will show extra detail with its extra 5 Megapixels. Higher resolution will also enable you to crop photographs more aggressively. The fresher Z7 II is going to have an advantage in sensor innovation.