Olympus E-M5 III vs Pentax K100D

Let's look a little more in depth at the Olympus E-M5 III versus Pentax K100D, former being a Advanced Mirrorless while the other is a Entry-Level DSLR by competitors Olympus and Pentax. There exists a substantial gap among the resolutions of the E-M5 III (20MP) and K100D (6MP) and the E-M5 III (Four Thirds) and K100D (APS-C) boast different sensor dimensions.

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The E-M5 III was unveiled 13 years later than the K100D and that is a fairly big difference as far as camera technology is concerned. The two cameras feature different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax K100D being a Compact SLR camera.

Before going right into a detailed comparison, here is a brief introduction of how the E-M5 III scores vs the K100D for portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Olympus OM-D E-M5 III & Pentax K100D. The full galleries are available at Olympus E-M5 III Gallery & Pentax K100D Gallery.

In case you're going to carry your camera often, you should factor in its weight and dimensions. The Olympus E-M5 III has got external measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) whilst the Pentax K100D has dimensions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") along with a weight of 660 grams (1.46 lbs).

Analyze the Olympus E-M5 III versus Pentax K100D in our brand new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change based on the lens you select at the time. Below is a front view dimension comparison of the E-M5 III vs the K100D.

Using dimensions and weight, the portability score of the E-M5 III and K100D is 80 and 64 respectively.

More often than not, it is tough to imagine the gap in sensor sizing merely by viewing specifications. The visual here should give you a clearer sense of the sensor sizing in the E-M5 III and K100D.

To sum up, both of these cameras come with different megapixel count and different sensor sizing. The E-M5 III having a smaller sensor is going to make getting shallow DOF more challenging and the Olympus E-M5 III will provide you with greater detail having an extra 14MP. Greater resolution will also enable you to crop images a good deal more aggressively. The fresher E-M5 III provides an edge in sensor technology.