Panasonic GX8 vs Pentax 645D

Lets look more closely at the Panasonic GX8 versus Pentax 645D, one being a Advanced Mirrorless and the latter is a Pro DSLR by companies Panasonic and Pentax. There is a crucial difference among the image resolutions of the GX8 (20MP) and 645D (40MP) and the GX8 (Four Thirds) and 645D (Medium format) come with different sensor sizing.

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The GX8 was manufactured 5 years later than the 645D and that is a fairly serious gap as far as camera tech is concerned. Both of the cameras come with different body type with the Panasonic GX8 being a Rangefinder-style mirrorless camera and the Pentax 645D being a Large SLR camera.

Before we go straight into a detailed comparison, below is a brief view of how the GX8 grades against the 645D when considering portability, imaging, features and an overall rating.

This is a preview of the gallery images for Panasonic Lumix DMC-GX8 and Pentax 645D. The entire galleries are viewable at Panasonic GX8 Gallery and Pentax 645D Gallery.

When you are intending to carry your camera often, you'll have to factor its weight and size. The Panasonic GX8 features exterior measurements of 133mm x 78mm x 63mm (5.2" x 3.1" x 2.5") and a weight of 487 grams (1.07 lbs) whilst the Pentax 645D has specifications of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") along with a weight of 1480 grams (3.26 lbs).

Check the Panasonic GX8 versus Pentax 645D in the all new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ based on the lens you are employing at the time. Following is the front view measurements comparison of the GX8 against the 645D.

Looking at size and weight, the portability grade of the GX8 and 645D is 74 and 50 respectively.

Often, its difficult to visualize the contrast in sensor sizing merely by going through specifications. The graphic underneath will help give you a better sense of the sensor measurements in the GX8 and 645D.

To sum up, the two cameras have got different megapixel count and different sensor sizing. The GX8 because of its smaller sensor is going to make shooting shallow DOF trickier and the Pentax 645D will show extra detail due to its extra 20MP. Higher resolution can also help you crop pictures much more aggressively. The newer GX8 should have a benefit when it comes to sensor technology.