Panasonic G10 vs Pentax 645Z

On this page, we will be evaluating the Panasonic G10 and Pentax 645Z, one is a Entry-Level Mirrorless and the latter is a Pro DSLR by rivals Panasonic and Pentax. There exists a huge gap between the sensor resolutions of the G10 (12MP) and 645Z (51MP) and the G10 (Four Thirds) and 645Z (Medium format) provide different sensor dimensions.

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The G10 was introduced 4 years earlier than the 645Z which is quite a significant gap as far as technology is concerned. Both the cameras have different body design with the Panasonic G10 being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before we go right into a complete comparison, here is a quick summary of how the G10 scores against the 645Z with respect to portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Panasonic Lumix DMC-G10 and Pentax 645Z. The whole galleries are provided at Panasonic G10 Gallery and Pentax 645Z Gallery.

For anyone who is intending to travel with your camera often, you'll have to consider its weight and dimensions. The Panasonic G10 provides outside dimensions of 124mm x 90mm x 74mm (4.9" x 3.5" x 2.9") with a weight of 388 grams (0.86 lbs) and the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs).

Check out the Panasonic G10 and Pentax 645Z in the new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilising at that time. The following is a front view scale comparison of the G10 compared to the 645Z.

Factoring in dimensions and weight, the portability grade of the G10 and 645Z is 72 and 49 respectively.

Normally, its hard to imagine the contrast between sensor dimensions just by looking at specifications. The pic here will provide you a much better sense of the sensor dimensions in the G10 and 645Z.

To sum up, the 2 cameras provide different megapixels and different sensor dimensions. The G10 having a tinier sensor is going to make achieving shallow DOF harder and the Pentax 645Z will give greater detail using its extra 39MP. Higher resolution can also make it easier to crop shots more aggressively. The more aged G10 is going to be disadvantaged with regard to sensor technology.