Olympus E-M1 III vs Pentax K-01

In this article, we will be reviewing the Olympus E-M1 III vs Pentax K-01, one is a Pro Mirrorless and the latter is a Entry-Level Mirrorless by manufacturers Olympus and Pentax. There exists a big gap among the sensor resolutions of the E-M1 III (20MP) and K-01 (16MP) and the E-M1 III (Four Thirds) and K-01 (APS-C) possess different sensor sizes.

Photography Glossary

The E-M1 III was released 7 years after the K-01 which is a fairly big gap as far as camera technology is concerned. Both cameras offer the identical body type (SLR-style mirrorless).

Before delving straight into a comprehensive comparison, below is a quick summation of how the E-M1 III matches up vs the K-01 with respect to portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Olympus OM-D E-M1 Mark III and Pentax K-01. The complete galleries are viewable at Olympus E-M1 III Gallery and Pentax K-01 Gallery.

If you are aiming to travel with your camera frequently, you will need to factor its weight and dimensions. The Olympus E-M1 III features physical measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) whilst the Pentax K-01 has dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") accompanied by a weight of 561 grams (1.24 lbs).

Examine the Olympus E-M1 III vs Pentax K-01 in the latest Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at that time. Here is the front view overall size comparison of the E-M1 III vs the K-01.

Considering dimensions and weight, the portability rating of the E-M1 III and K-01 is 67 and 76 respectively.

Sometimes, its tough to picture the gap in sensor dimensions merely by viewing specs. The pic underneath should give you a much better sense of the sensor measurements in the E-M1 III and K-01.

All in all, both of those cameras offer different megapixel count and different sensor dimensions. The E-M1 III featuring a smaller sensor is going to make shooting shallower DOF harder and the Olympus E-M1 III will provide you with greater detail as a result of its extra 4 Megapixels. Higher resolution can also make it easier to crop pictures a little more aggressively. The more modern E-M1 III provides an edge when it comes to sensor innovation.