Olympus E-M5 III vs Pentax RZ18

Let's take a more detailed look at the Olympus E-M5 III versus Pentax RZ18, former is a Advanced Mirrorless while the other is a Small Sensor Superzoom by competitors Olympus and Pentax. There is a large difference between the image resolutions of the E-M5 III (20MP) and RZ18 (16MP) and the E-M5 III (Four Thirds) and RZ18 (1/2.3") have different sensor size.

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The E-M5 III was revealed 8 years after the RZ18 which is quite a serious difference as far as tech is concerned. The two cameras have different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax RZ18 being a Compact camera.

Before diving straight to a in depth comparison, here is a simple summation of how the E-M5 III matches up versus the RZ18 in terms of portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Olympus OM-D E-M5 III & Pentax Optio RZ18. The full galleries are provided at Olympus E-M5 III Gallery & Pentax RZ18 Gallery.

For anybody who is going to travel with your camera often, you'll need to factor its weight and dimensions. The Olympus E-M5 III enjoys physical dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs) whilst the Pentax RZ18 has dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") along with a weight of 178 grams (0.39 lbs).

Look at the Olympus E-M5 III versus Pentax RZ18 in our newest Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ dependant on the lens you are working with during that time. Here is a front view proportions comparison of the E-M5 III versus the RZ18.

Factoring in size and weight, the portability grade of the E-M5 III and RZ18 is 80 and 92 respectively.

Oftentimes, it can be hard to picture the difference between sensor dimensions simply by checking specifications. The picture below will give you a clearer sense of the sensor sizes in the E-M5 III and RZ18.

To sum up, both of these cameras have different megapixels and different sensor dimensions. The E-M5 III with its larger sensor is going to make achieving shallow DOF easier and the Olympus E-M5 III will give you extra detail because of its extra 4 Megapixels. Greater resolution will let you crop images a bit more aggressively. The younger E-M5 III should have a benefit in sensor innovation.