Olympus E-M10 III vs Pentax K-01

Following is a thorough comparison of the Olympus E-M10 III and Pentax K-01, both Entry-Level Mirrorless cameras by brands Olympus and Pentax. The image resolution of the E-M10 III (16MP) and the K-01 (16MP) is fairly comparable but the E-M10 III (Four Thirds) and K-01 (APS-C) offer totally different sensor sizes.

Photography Glossary

The E-M10 III was unveiled 5 years after the K-01 which is a fairly sizable gap as far as camera tech is concerned. The two cameras feature the same body design (SLR-style mirrorless).

Before delving into a detailed comparison, here is a simple highlight of how the E-M10 III grades vs the K-01 in terms of portability, imaging, features and an overall score.

Following is a sample of the gallery pictures for Olympus OM-D E-M10 Mark III and Pentax K-01. The full galleries are provided at Olympus E-M10 III Gallery and Pentax K-01 Gallery.

For anyone who is aiming to carry around your camera, you have to factor its weight and dimensions. The Olympus E-M10 III features exterior measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") and a weight of 410 grams (0.90 lbs) and the Pentax K-01 has dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") along with a weight of 561 grams (1.24 lbs).

Take a look at the Olympus E-M10 III and Pentax K-01 in the latest Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change based on the lens you use at that time. The following is a front view proportions comparison of the E-M10 III vs the K-01.

Taking into consideration size and weight, the portability rating of the E-M10 III and K-01 is 80 and 76 respectively.

Usually, it can be tough to visualise the difference in sensor sizes just by checking out a spec sheet. The pic underneath should give you a more clear sense of the sensor sizing in the E-M10 III and K-01.

As you can see, both of those cameras come with the identical resolution but not the same sensor sizes. The E-M10 III uses the smaller sensor which will make obtaining shallower depth of field more difficult. The newer E-M10 III is going to have a benefit in sensor innovation.