Panasonic GX9 vs Pentax 645Z

Here is a extensive review of the Panasonic GX9 vs Pentax 645Z, former being a Advanced Mirrorless while the other is a Pro DSLR by brands Panasonic and Pentax. There is a sizable difference among the image resolutions of the GX9 (20MP) and 645Z (51MP) and the GX9 (Four Thirds) and 645Z (Medium format) posses different sensor sizing.

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The GX9 was launched 3 years later than the 645Z and that is a fairly significant difference as far as camera tech is concerned. Each of these cameras feature different body design with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before we go right into a more detailed comparison, here is a quick highlight of how the GX9 scores vs the 645Z in the way of portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Panasonic Lumix DC-GX9 & Pentax 645Z. The complete galleries are viewable at Panasonic GX9 Gallery & Pentax 645Z Gallery.

For those who are aiming to carry your camera frequently, you have to think about its weight and dimensions. The Panasonic GX9 features outer measurements of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") accompanied by a weight of 407 grams (0.90 lbs) and the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs).

Contrast the Panasonic GX9 vs Pentax 645Z in our newest Camera plus Lens Size Comparison Tool.

Always remember, the weight of an ILC will differ dependant on the lens you are using at the time. Following is a front view physical size comparison of the GX9 against the 645Z.

Looking at size and weight, the portability rating of the GX9 and 645Z is 82 and 49 respectively.

In many cases, it can be hard to imagine the contrast in sensor sizing purely by researching specifications. The photograph below will help provide you a clearer sense of the sensor measurements in the GX9 and 645Z.

To sum up, both cameras come with different megapixel count and different sensor sizing. The GX9 because of its smaller sensor is going to make shooting shallower depth of field harder and the Pentax 645Z will provide you with more detail utilizing its extra 31 Megapixels. Greater resolution can also let you crop images a good deal more aggressively. The newer GX9 should have a benefit with regard to sensor tech.