Panasonic G100 vs Pentax 645Z

Following is a extended assessment of the Panasonic G100 vs Pentax 645Z, former is a Entry-Level Mirrorless while the other is a Pro DSLR by competitors Panasonic and Pentax. There exists a substantial gap among the sensor resolutions of the G100 (20MP) and 645Z (51MP) and the G100 (Four Thirds) and 645Z (Medium format) feature totally different sensor measurements.

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The G100 was released 6 years after the 645Z which is a fairly big difference as far as camera technology is concerned. Each of these cameras come with different body type with the Panasonic G100 being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before getting in to a in depth comparison, below is a brief summary of how the G100 matches up versus the 645Z in relation to portability, imaging, features and an overall score.

Following is a sample of the gallery pictures for Panasonic Lumix DC-G100 & Pentax 645Z. The complete galleries are viewable at Panasonic G100 Gallery & Pentax 645Z Gallery.

When you are looking to carry around your camera frequently, you'll have to factor its weight and size. The Panasonic G100 offers outer dimensions of 116mm x 83mm x 54mm (4.6" x 3.3" x 2.1") and a weight of 352 grams (0.78 lbs) and the Pentax 645Z has specifications of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs).

Look at the Panasonic G100 vs Pentax 645Z in our completely new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ depending on the lens you are employing at that time. Underneath is the front view scale comparison of the G100 and the 645Z.

Using dimensions and weight, the portability grade of the G100 and 645Z is 81 and 49 respectively.

Typically, it's hard to envision the difference in sensor sizes only by going through a spec sheet. The image underneath should offer you a better sense of the sensor dimensions in the G100 and 645Z.

As you can see, both of these cameras have got different megapixels and different sensor sizes. The G100 because of its smaller sensor will make shooting shallow depth of field more challenging and the Pentax 645Z will provide greater detail as a result of its extra 31 Megapixels. Greater resolution will also enable you to crop pics much more aggressively. The fresher G100 will have an advantage with regard to sensor technology.