Olympus E-M5 III vs Pentax Q7

On this page, we are reviewing the Olympus E-M5 III and Pentax Q7, former being a Advanced Mirrorless while the other is a Entry-Level Mirrorless by competitors Olympus and Pentax. There exists a noticeable gap among the resolutions of the E-M5 III (20MP) and Q7 (12MP) and the E-M5 III (Four Thirds) and Q7 (1/1.7") provide totally different sensor measurements.

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The E-M5 III was brought out 6 years later than the Q7 and that is a fairly sizable difference as far as camera technology is concerned. Both of the cameras have different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax Q7 being a Rangefinder-style mirrorless camera.

Before delving right into a comprehensive comparison, here is a brief highlight of how the E-M5 III matches up vs the Q7 with regards to portability, imaging, features and an overall grade.

This is a sample of the gallery pictures for Olympus OM-D E-M5 III & Pentax Q7. The entire galleries are available at Olympus E-M5 III Gallery & Pentax Q7 Gallery.

For those who are aiming to lug around your camera, you are going to need to think about its weight and dimensions. The Olympus E-M5 III has outer measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") with a weight of 414 grams (0.91 lbs) and the Pentax Q7 has dimensions of 102mm x 58mm x 34mm (4.0" x 2.3" x 1.3") accompanied by a weight of 200 grams (0.44 lbs).

Check the Olympus E-M5 III and Pentax Q7 in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will differ depending on the lens you use during that time. Here is a front view proportions comparison of the E-M5 III against the Q7.

Looking at dimensions and weight, the portability grade of the E-M5 III and Q7 is 80 and 92 respectively.

Sometimes, it's tough to visualise the gap in sensor measurements purely by seeing technical specs. The graphic here might give you a better sense of the sensor sizing in the E-M5 III and Q7.

As you can tell, the 2 cameras have different resolutions and different sensor measurements. The E-M5 III featuring a larger sensor will make shooting shallow DOF simpler and the Olympus E-M5 III will provide more detail having its extra 8 Megapixels. Greater resolution can also make it easier to crop images a bit more aggressively. The newer E-M5 III will have an edge when it comes to sensor technology.