Olympus E-M1 II vs Pentax K-3

Here, we will be looking at the Olympus E-M1 II vs Pentax K-3, one being a Pro Mirrorless and the latter is a Advanced DSLR by rivals Olympus and Pentax. The resolution of the E-M1 II (20MP) and the K-3 (24MP) is relatively well matched but the E-M1 II (Four Thirds) and K-3 (APS-C) boast totally different sensor sizes.

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The E-M1 II was released 2 years later than the K-3 and that is quite a big gap as far as technology is concerned. Both of the cameras feature different body design with the Olympus E-M1 II being a SLR-style mirrorless camera and the Pentax K-3 being a Mid-size SLR camera.

Before getting right into a more detailed comparison, here is a concise summation of how the E-M1 II scores against the K-3 in terms of portability, imaging, features and an overall grade.

Here is a preview of the gallery photos for Olympus OM-D E-M1 Mark II and Pentax K-3. The complete galleries are viewable at Olympus E-M1 II Gallery and Pentax K-3 Gallery.

For those who are intending to lug around your camera, you need to think about its weight and size. The Olympus E-M1 II provides external dimensions of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") having a weight of 574 grams (1.27 lbs) whilst the Pentax K-3 has specifications of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs).

Check out the Olympus E-M1 II vs Pentax K-3 in the all new Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ depending on the lens you select during that time. Following is a front view measurements comparison of the E-M1 II versus the K-3.

Taking into consideration dimensions and weight, the portability grade of the E-M1 II and K-3 is 68 and 59 respectively.

More often than not, it can be hard to visualise the difference between sensor measurements only by reading through a spec sheet. The graphic below should offer you a better sense of the sensor dimensions in the E-M1 II and K-3.

Clearly, each of these cameras come with different resolutions and different sensor measurements. The E-M1 II because of its tinier sensor will make achieving bokeh more challenging and the Pentax K-3 will resolve extra detail as a result of its extra 4 Megapixels. Higher resolution will help you crop photographs a good deal more aggressively. The more modern E-M1 II is going to have an advantage in sensor tech.