Olympus E-M5 III vs Pentax Q-S1

Below is a comprehensive analysis of the Olympus E-M5 III and Pentax Q-S1, one being a Advanced Mirrorless and the latter is a Entry-Level Mirrorless by rivals Olympus and Pentax. There is a sizeable difference among the resolutions of the E-M5 III (20MP) and Q-S1 (12MP) and the E-M5 III (Four Thirds) and Q-S1 (1/1.7") provide different sensor sizing.

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The E-M5 III was launched 5 years later than the Q-S1 and that is a fairly large gap as far as camera tech is concerned. Each of these cameras feature different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax Q-S1 being a Rangefinder-style mirrorless camera.

Before diving into a more detailed comparison, here is a short overview of how the E-M5 III scores against the Q-S1 with regards to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Olympus OM-D E-M5 III and Pentax Q-S1. The complete galleries are viewable at Olympus E-M5 III Gallery and Pentax Q-S1 Gallery.

For anybody who is planning to lug around your camera often, you need to factor its weight and size. The Olympus E-M5 III provides physical measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") having a weight of 414 grams (0.91 lbs) and the Pentax Q-S1 has specifications of 105mm x 58mm x 34mm (4.1" x 2.3" x 1.3") with a weight of 203 grams (0.45 lbs).

Examine the Olympus E-M5 III and Pentax Q-S1 in the latest Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ dependant on the lens you select during that time. Below is a front view scale comparison of the E-M5 III compared to the Q-S1.

Looking at size and weight, the portability grade of the E-M5 III and Q-S1 is 80 and 92 respectively.

Usually, it is very tough to imagine the gap in sensor measurements simply by going through technical specs. The visual here might give you a far better sense of the sensor sizing in the E-M5 III and Q-S1.

As you can tell, each of these cameras come with different resolutions and different sensor measurements. The E-M5 III because of its bigger sensor is going to make achieving shallower depth of field less difficult and the Olympus E-M5 III will provide greater detail utilizing its extra 8 Megapixels. Higher resolution will also help you crop photographs a good deal more aggressively. The newer E-M5 III provides an advantage with regard to sensor tech.