Olympus E-M5 III vs Pentax K-5

On this page, we are evaluating the Olympus E-M5 III versus Pentax K-5, one is a Advanced Mirrorless and the other is a Advanced DSLR by rivals Olympus and Pentax. There exists a big gap among the resolutions of the E-M5 III (20MP) and K-5 (16MP) and the E-M5 III (Four Thirds) and K-5 (APS-C) provide totally different sensor dimensions.

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The E-M5 III was released 8 years after the K-5 which is a fairly big gap as far as camera technology is concerned. Each of these cameras have different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax K-5 being a Mid-size SLR camera.

Before getting right into a in depth comparison, here is a brief highlight of how the E-M5 III scores against the K-5 when considering portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Olympus OM-D E-M5 III and Pentax K-5. The complete galleries are viewable at Olympus E-M5 III Gallery and Pentax K-5 Gallery.

For anyone who is aiming to carry around your camera regularly, you have to consider its weight and dimensions. The Olympus E-M5 III enjoys outer dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") with a weight of 414 grams (0.91 lbs) whilst the Pentax K-5 has dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") with a weight of 740 grams (1.63 lbs).

Check out the Olympus E-M5 III versus Pentax K-5 in the all new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilizing at that moment. The following is a front view overall size comparison of the E-M5 III compared to the K-5.

Using dimensions and weight, the portability rating of the E-M5 III and K-5 is 80 and 60 respectively.

Typically, it's hard to envision the contrast in sensor sizes only by seeing specs. The pic below may give you a better sense of the sensor sizes in the E-M5 III and K-5.

As you can plainly see, each of the cameras have different megapixel count and different sensor sizes. The E-M5 III due to its smaller sensor will make shooting bokeh more difficult and the Olympus E-M5 III will provide extra detail as a result of its extra 4MP. Greater resolution can also allow you to crop pics a bit more aggressively. The younger E-M5 III is going to have a benefit in sensor innovation.