Olympus E-PM2 vs Pentax 645Z

Lets look more closely at the Olympus E-PM2 and Pentax 645Z, one being a Entry-Level Mirrorless and the other is a Pro DSLR by companies Olympus and Pentax. There is a significant difference between the resolutions of the E-PM2 (16MP) and 645Z (51MP) and the E-PM2 (Four Thirds) and 645Z (Medium format) boast totally different sensor sizes.

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The E-PM2 was announced 10 months before the 645Z and they are both of a similar generation. The two cameras feature different body design with the Olympus E-PM2 being a Rangefinder-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before we go straight to a in-depth comparison, here is a brief highlight of how the E-PM2 scores against the 645Z when considering portability, imaging, features and an overall grade.

Following is a sample of the gallery pics for Olympus PEN E-PM2 and Pentax 645Z. The whole galleries are provided at Olympus E-PM2 Gallery and Pentax 645Z Gallery.

For anyone who is looking to lug around your camera regularly, you will have to consider its weight and size. The Olympus E-PM2 provides exterior measurements of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") accompanied by a weight of 269 grams (0.59 lbs) whilst 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).

Check the Olympus E-PM2 and Pentax 645Z in the latest Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ depending on the lens you have at the time. The following is a front view measurements comparison of the E-PM2 against the 645Z.

Looking at size and weight, the portability rating of the E-PM2 and 645Z is 89 and 49 respectively.

Oftentimes, it is very tough to see the gap between sensor measurements only by reviewing specifications. The graphic underneath should provide you a clearer sense of the sensor sizing in the E-PM2 and 645Z.

To sum up, both of the cameras feature different megapixel count and different sensor measurements. The E-PM2 with its tinier sensor will make getting shallower depth of field trickier and the Pentax 645Z will offer more detail with its extra 35 Megapixels. Greater resolution will allow you to crop pics way more aggressively. The older E-PM2 is going to be behind with regard to sensor innovation.