Panasonic G7 vs Pentax 645D

Here, we are contrasting the Panasonic G7 and Pentax 645D, one being a Advanced Mirrorless and the other is a Pro DSLR by competitors Panasonic and Pentax. There is a huge difference among the resolutions of the G7 (16MP) and 645D (40MP) and the G7 (Four Thirds) and 645D (Medium format) have totally different sensor dimensions.

Photography Glossary

The G7 was manufactured 5 years later than the 645D and that is a fairly significant gap as far as camera tech is concerned. Both cameras feature different body design with the Panasonic G7 being a SLR-style mirrorless camera and the Pentax 645D being a Large SLR camera.

Before we go right into a complete comparison, here is a simple overview of how the G7 scores vs the 645D for portability, imaging, features and an overall grade.

Below is a sample of the gallery pics for Panasonic Lumix DMC-G7 and Pentax 645D. The entire galleries are provided at Panasonic G7 Gallery and Pentax 645D Gallery.

If you are going to lug around your camera, you will have to think about its weight and dimensions. The Panasonic G7 enjoys outer measurements of 125mm x 86mm x 77mm (4.9" x 3.4" x 3.0") with a weight of 410 grams (0.90 lbs) while the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs).

Check out the Panasonic G7 and Pentax 645D in the new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you are employing at the time. Below is a front view measurement comparison of the G7 vs the 645D.

Taking into account size and weight, the portability score of the G7 and 645D is 71 and 50 respectively.

Generally, its tough to envision the contrast in sensor measurements purely by viewing technical specs. The visual here might offer you a clearer sense of the sensor sizing in the G7 and 645D.

As you can tell, both of those cameras come with different megapixels and different sensor measurements. The G7 due to its smaller sensor will make achieving bokeh harder and the Pentax 645D will render more detail due to its extra 24MP. Greater resolution can also help you crop pics a good deal more aggressively. The more modern G7 will have a benefit in sensor tech.