Olympus E-M5 III vs Pentax E90

Below is a in depth comparison of the Olympus E-M5 III vs Pentax E90, one being a Advanced Mirrorless and the latter is a Small Sensor Compact by brands Olympus and Pentax. There is a crucial difference among the sensor resolutions of the E-M5 III (20MP) and E90 (10MP) and the E-M5 III (Four Thirds) and E90 (1/2.3") use totally different sensor sizes.

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The E-M5 III was unveiled 9 years later than the E90 and that is a fairly serious gap as far as camera tech is concerned. Both of these cameras offer different body type with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax E90 being a Compact camera.

Before going straight into a more detailed comparison, below is a short introduction of how the E-M5 III matches up against the E90 for portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Olympus OM-D E-M5 III and Pentax Optio E90. The full galleries are provided at Olympus E-M5 III Gallery and Pentax E90 Gallery.

If you're aiming to lug around your camera regularly, you'll need to factor in its weight and size. The Olympus E-M5 III has got exterior dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) and the Pentax E90 has specifications of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") and a weight of 145 grams (0.32 lbs).

Compare the Olympus E-M5 III vs Pentax E90 in the new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you use at the time. The following is the front view size comparison of the E-M5 III against the E90.

Taking into consideration size and weight, the portability score of the E-M5 III and E90 is 80 and 94 respectively.

In many cases, it is very hard to see the difference in sensor measurements simply by looking through specifications. The visual underneath may give you a more clear sense of the sensor sizes in the E-M5 III and E90.

Plainly, both of the cameras offer different megapixels and different sensor measurements. The E-M5 III having a bigger sensor will make getting shallow DOF easier and the Olympus E-M5 III will result in more detail having an extra 10MP. Higher resolution can also make it easier to crop photographs a little more aggressively. The fresher E-M5 III will have an advantage in sensor innovation.