Olympus E-M10 vs Pentax 645Z

Here is a in depth analysis of the Olympus E-M10 versus Pentax 645Z, former being a Entry-Level Mirrorless while the other is a Pro DSLR by manufacturers Olympus and Pentax. There is a noticeable difference between the resolutions of the E-M10 (16MP) and 645Z (51MP) and the E-M10 (Four Thirds) and 645Z (Medium format) have totally different sensor dimensions.

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The E-M10 was announced within a month of the 645Z which means that they are both of a similar age. Each of these cameras have different body design with the Olympus E-M10 being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before we go straight to a full comparison, here is a brief introduction of how the E-M10 grades against the 645Z with regards to portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Olympus OM-D E-M10 & Pentax 645Z. The whole galleries are provided at Olympus E-M10 Gallery & Pentax 645Z Gallery.

For anyone who is intending to carry your camera, you need to consider its weight and dimensions. The Olympus E-M10 enjoys exterior dimensions of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") having a weight of 396 grams (0.87 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).

Examine the Olympus E-M10 versus Pentax 645Z in our completely new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ based on the lens you use during that time. Underneath is a front view dimension comparison of the E-M10 and the 645Z.

Using size and weight, the portability grade of the E-M10 and 645Z is 82 and 49 respectively.

Often, it is very difficult to see the gap between sensor sizing only by checking technical specs. The photograph below might offer you a far better sense of the sensor sizes in the E-M10 and 645Z.

As you have seen, the two cameras provide different megapixel count and different sensor sizing. The E-M10 having a tinier sensor will make getting shallower depth of field tougher and the Pentax 645Z will give you extra detail with its extra 35 Megapixels. Greater resolution can also help you crop images more aggressively.