Olympus E-P5 vs Pentax 645Z

Here, we are looking at the Olympus E-P5 vs Pentax 645Z, former is a Entry-Level Mirrorless while the other is a Pro DSLR by competitors Olympus and Pentax. There is a noticeable difference between the image resolutions of the E-P5 (16MP) and 645Z (51MP) and the E-P5 (Four Thirds) and 645Z (Medium format) provide totally different sensor measurements.

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The E-P5 was launched 6 months prior to the 645Z so they are of a similar age. Both of these cameras feature different body design with the Olympus E-P5 being a Rangefinder-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before delving into a in-depth comparison, here is a concise summary of how the E-P5 grades versus the 645Z when considering portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Olympus PEN E-P5 & Pentax 645Z. The complete galleries are viewable at Olympus E-P5 Gallery & Pentax 645Z Gallery.

When you are aiming to travel with your camera regularly, you'll have to think about its weight and dimensions. The Olympus E-P5 has got outside measurements of 122mm x 69mm x 37mm (4.8" x 2.7" x 1.5") along with a weight of 420 grams (0.93 lbs) while the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs).

Check out the Olympus E-P5 vs Pentax 645Z in our completely new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ based on the lens you have attached at the time. Below is a front view overall size comparison of the E-P5 versus the 645Z.

Taking into consideration size and weight, the portability grade of the E-P5 and 645Z is 85 and 49 respectively.

Oftentimes, it can be difficult to envision the contrast between sensor dimensions purely by going over specs. The picture underneath should offer you a better sense of the sensor measurements in the E-P5 and 645Z.

As you can plainly see, the two cameras come with different megapixels and different sensor dimensions. The E-P5 featuring a tinier sensor will make shooting bokeh tougher and the Pentax 645Z will offer extra detail utilizing its extra 35 Megapixels. Greater resolution will also allow you to crop pics a good deal more aggressively.