Panasonic GX9 vs Pentax 645D

Let's take a deeper look at the Panasonic GX9 and Pentax 645D, one being a Advanced Mirrorless and the other is a Pro DSLR by manufacturers Panasonic and Pentax. There exists a big gap between the resolutions of the GX9 (20MP) and 645D (40MP) and the GX9 (Four Thirds) and 645D (Medium format) have different sensor sizes.

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The GX9 was manufactured 8 years later than the 645D and that is quite a big gap as far as technology is concerned. The two cameras feature different body design with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Pentax 645D being a Large SLR camera.

Before we go straight to a in-depth comparison, here is a concise introduction of how the GX9 scores versus the 645D when it comes to portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Panasonic Lumix DC-GX9 and Pentax 645D. The entire galleries are available at Panasonic GX9 Gallery and Pentax 645D Gallery.

If you're intending to lug around your camera frequently, you'll have to factor its weight and dimensions. The Panasonic GX9 comes with outer dimensions 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 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") along with a weight of 1480 grams (3.26 lbs).

Contrast the Panasonic GX9 and Pentax 645D in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change based on the lens you use at that moment. Underneath is a front view size comparison of the GX9 vs the 645D.

Taking into account dimensions and weight, the portability grade of the GX9 and 645D is 82 and 50 respectively.

Quite often, it is very hard to imagine the gap between sensor measurements merely by going over a spec sheet. The visual here might offer you a more clear sense of the sensor sizes in the GX9 and 645D.

As you can see, each of these cameras come with different megapixels and different sensor measurements. The GX9 featuring a tinier sensor is going to make shooting bokeh tougher and the Pentax 645D will offer you more detail due to its extra 20MP. Greater resolution will allow you to crop photos a good deal more aggressively. The newer GX9 provides an edge in sensor technology.