Panasonic GX85 vs Pentax 645Z

On this page, we will be contrasting the Panasonic GX85 vs Pentax 645Z, one being a Advanced Mirrorless and the latter is a Pro DSLR by brands Panasonic and Pentax. There exists a sizeable gap between the resolutions of the GX85 (16MP) and 645Z (51MP) and the GX85 (Four Thirds) and 645Z (Medium format) offer different sensor sizes.

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The GX85 was introduced 2 years later than the 645Z and that is quite a large gap as far as technology is concerned. Both cameras have different body design with the Panasonic GX85 being a Rangefinder-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before delving straight to a detailed comparison, here is a quick introduction of how the GX85 scores against the 645Z with respect to portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Panasonic Lumix DMC-GX85 and Pentax 645Z. The whole galleries are provided at Panasonic GX85 Gallery and Pentax 645Z Gallery.

For those who are planning to lug around your camera, you'll need to factor its weight and volume. The Panasonic GX85 comes with external measurements of 122mm x 71mm x 44mm (4.8" x 2.8" x 1.7") with a weight of 426 grams (0.94 lbs) and the Pentax 645Z has sizing of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs).

Analyze the Panasonic GX85 vs Pentax 645Z in the new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing during that time. Underneath is a front view dimension comparison of the GX85 vs the 645Z.

Using dimensions and weight, the portability rating of the GX85 and 645Z is 83 and 49 respectively.

Typically, it is difficult to visualize the gap between sensor measurements simply by reading through specs. The visual underneath might provide you a better sense of the sensor measurements in the GX85 and 645Z.

As you can plainly see, both of these cameras have different megapixel count and different sensor measurements. The GX85 using its tinier sensor is going to make shooting shallower DOF more challenging and the Pentax 645Z will resolve greater detail using its extra 35 Megapixels. Higher resolution will make it easier to crop pictures a bit more aggressively. The more modern GX85 provides an advantage with regard to sensor tech.