Olympus E-M10 vs Pentax K100D S

Below, we will be reviewing the Olympus E-M10 and Pentax K100D S, former is a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by companies Olympus and Pentax. There is a sizable difference between the resolutions of the E-M10 (16MP) and K100D S (6MP) and the E-M10 (Four Thirds) and K100D S (APS-C) use totally different sensor dimensions.

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The E-M10 was brought out 6 years after the K100D S which is quite a significant difference as far as tech is concerned. Each of these cameras come with different body type with the Olympus E-M10 being a SLR-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before getting in to a full comparison, below is a concise view of how the E-M10 matches up against the K100D S when it comes to portability, imaging, features and an overall mark.

Following is a preview of the gallery images for Olympus OM-D E-M10 & Pentax K100D Super. The entire galleries are available at Olympus E-M10 Gallery & Pentax K100D S Gallery.

For those who are intending to travel with your camera regularly, you're going to have to factor its weight and size. The Olympus E-M10 features external dimensions of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") along with a weight of 396 grams (0.87 lbs) and the Pentax K100D S has specifications of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs).

See the Olympus E-M10 and Pentax K100D S in our completely new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change dependant on the lens you are working with at that moment. Here is the front view dimension comparison of the E-M10 compared to the K100D S.

Looking at size and weight, the portability rating of the E-M10 and K100D S is 82 and 65 respectively.

Generally, its difficult to see the difference between sensor dimensions just by looking at a spec sheet. The image here might offer you a far better sense of the sensor dimensions in the E-M10 and K100D S.

As you can see, the 2 cameras have got different megapixels and different sensor dimensions. The E-M10 featuring a tinier sensor will make getting shallower DOF trickier and the Olympus E-M10 will give you more detail having its extra 10MP. Higher resolution will enable you to crop pictures much more aggressively. The more recent E-M10 is going to have an advantage in sensor tech.