Olympus E-PL7 vs Pentax 645Z

On this page, we are matching up the Olympus E-PL7 vs Pentax 645Z, former being a Entry-Level Mirrorless while the other is a Pro DSLR by rivals Olympus and Pentax. There exists a considerable gap between the image resolutions of the E-PL7 (16MP) and 645Z (51MP) and the E-PL7 (Four Thirds) and 645Z (Medium format) boast totally different sensor sizes.

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The E-PL7 was released 5 months later than the 645Z which means that they are both of a similar age. The two cameras have different body design with the Olympus E-PL7 being a Rangefinder-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before we go right into a full comparison, here is a short summation of how the E-PL7 scores vs the 645Z with regards to portability, imaging, features and an overall grade.

Below is a sample of the gallery pictures for Olympus PEN E-PL7 & Pentax 645Z. The complete galleries are viewable at Olympus E-PL7 Gallery & Pentax 645Z Gallery.

If you're intending to lug around your camera regularly, you will have to factor in its weight and proportions. The Olympus E-PL7 offers outside dimensions of 115mm x 67mm x 38mm (4.5" x 2.6" x 1.5") accompanied by a weight of 357 grams (0.79 lbs) and the Pentax 645Z has measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs).

See the Olympus E-PL7 vs Pentax 645Z in our newest Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will differ dependant on the lens you are using at that time. The following is a front view measurement comparison of the E-PL7 against the 645Z.

Taking into account dimensions and weight, the portability score of the E-PL7 and 645Z is 86 and 49 respectively.

Typically, it's difficult to visualise the gap between sensor measurements simply by reviewing specs. The photograph here will provide you a much better sense of the sensor dimensions in the E-PL7 and 645Z.

As you can plainly see, the 2 cameras have different megapixels and different sensor measurements. The E-PL7 due to its tinier sensor will make achieving shallower DOF trickier and the Pentax 645Z will offer more detail as a result of its extra 35MP. Greater resolution can also let you crop images a bit more aggressively.