Olympus E-M10 vs Pentax K20D

Here, we will be looking at the Olympus E-M10 versus Pentax K20D, one is a Entry-Level Mirrorless and the latter is a Advanced DSLR by rivals Olympus and Pentax. The resolution of the E-M10 (16MP) and the K20D (15MP) is relatively similar but the E-M10 (Four Thirds) and K20D (APS-C) provide totally different sensor sizes.

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The E-M10 was unveiled 5 years after the K20D which is quite a significant gap as far as technology is concerned. Both cameras feature different body design with the Olympus E-M10 being a SLR-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before going into a in depth comparison, here is a simple summary of how the E-M10 matches up vs the K20D in regards to portability, imaging, features and an overall score.

Below is a preview of the gallery photos for Olympus OM-D E-M10 and Pentax K20D. The full galleries are viewable at Olympus E-M10 Gallery and Pentax K20D Gallery.

When you are planning to carry around your camera frequently, you will want to take into account its weight and measurements. The Olympus E-M10 enjoys physical measurements of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") along with a weight of 396 grams (0.87 lbs) while the Pentax K20D has proportions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).

Compare the Olympus E-M10 versus Pentax K20D in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you choose during that time. Here is a front view dimension comparison of the E-M10 vs the K20D.

Taking into consideration dimensions and weight, the portability grade of the E-M10 and K20D is 82 and 59 respectively.

Typically, it is hard to envision the contrast between sensor sizes only by reading specs. The picture below will give you a much better sense of the sensor measurements in the E-M10 and K20D.

All in all, the two cameras come with different megapixel count and different sensor sizes. The E-M10 using its tinier sensor will make shooting shallower DOF tougher and the Olympus E-M10 will offer greater detail having an extra 1 Megapixels. Higher resolution will help you crop photographs a good deal more aggressively. The younger E-M10 is going to have a benefit in sensor innovation.