Olympus E-M10 III vs Pentax K100D

In this article, we will be analyzing the Olympus E-M10 III and Pentax K100D, former being a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by brands Olympus and Pentax. There exists a considerable gap among the resolutions of the E-M10 III (16MP) and K100D (6MP) and the E-M10 III (Four Thirds) and K100D (APS-C) possess totally different sensor dimensions.

Photography Glossary

The E-M10 III was revealed 10 years later than the K100D and that is a fairly large difference as far as camera technology is concerned. Both of the cameras offer different body type with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax K100D being a Compact SLR camera.

Before we go in to a more detailed comparison, below is a concise highlight of how the E-M10 III scores vs the K100D in terms of portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Olympus OM-D E-M10 Mark III & Pentax K100D. The full galleries are viewable at Olympus E-M10 III Gallery & Pentax K100D Gallery.

If you're aiming to carry your camera frequently, you need to factor in its weight and measurements. The Olympus E-M10 III comes with physical measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") and a weight of 410 grams (0.90 lbs) whilst the Pentax K100D has proportions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") along with a weight of 660 grams (1.46 lbs).

Look at the Olympus E-M10 III and Pentax K100D in our newest Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will differ depending on the lens you are utilising during that time. Here is the front view proportions comparison of the E-M10 III versus the K100D.

Taking into consideration dimensions and weight, the portability score of the E-M10 III and K100D is 80 and 64 respectively.

Quite often, it can be tough to visualise the contrast in sensor sizing just by checking out a spec sheet. The graphic here should offer you a clearer sense of the sensor sizing in the E-M10 III and K100D.

As you can see, both of those cameras offer different resolutions and different sensor sizing. The E-M10 III having a smaller sensor will make shooting shallow DOF more difficult and the Olympus E-M10 III will provide extra detail because of its extra 10 Megapixels. Higher resolution will also help you crop shots a little more aggressively. The fresher E-M10 III will have an edge when it comes to sensor technology.