Olympus E-M1 III vs Pentax RZ10

Lets look more closely at the Olympus E-M1 III versus Pentax RZ10, one is a Pro Mirrorless and the latter is a Small Sensor Compact by companies Olympus and Pentax. There is a sizeable difference between the sensor resolutions of the E-M1 III (20MP) and RZ10 (14MP) and the E-M1 III (Four Thirds) and RZ10 (1/2.3") provide different sensor sizing.

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The E-M1 III was introduced 8 years after the RZ10 which is quite a large gap as far as tech is concerned. Both of these cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax RZ10 being a Compact camera.

Before we go straight to a comprehensive comparison, here is a quick view of how the E-M1 III grades vs the RZ10 with respect to portability, imaging, features and an overall mark.

Here is a preview of the gallery photos for Olympus OM-D E-M1 Mark III and Pentax Optio RZ10. The whole galleries are provided at Olympus E-M1 III Gallery and Pentax RZ10 Gallery.

If you are intending to travel with your camera frequently, you should factor in its weight and size. The Olympus E-M1 III offers physical measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) whilst the Pentax RZ10 has specifications of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") along with a weight of 178 grams (0.39 lbs).

Examine the Olympus E-M1 III versus Pentax RZ10 in the all new Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at that time. Following is a front view proportions comparison of the E-M1 III compared to the RZ10.

Considering size and weight, the portability score of the E-M1 III and RZ10 is 67 and 92 respectively.

Usually, it is very hard to imagine the contrast between sensor dimensions just by checking technical specs. The pic below may provide you a more clear sense of the sensor measurements in the E-M1 III and RZ10.

As you can tell, each of these cameras come with different resolutions and different sensor dimensions. The E-M1 III having a bigger sensor is going to make achieving shallow DOF simpler and the Olympus E-M1 III will give greater detail using its extra 6 Megapixels. Higher resolution will enable you to crop shots a good deal more aggressively. The newer E-M1 III should have a benefit when it comes to sensor technology.