Olympus E-M5 vs Pentax K20D

The following is a in-depth analysis of the Olympus E-M5 versus Pentax K20D, one is a Advanced Mirrorless and the other is a Advanced DSLR by manufacturers Olympus and Pentax. The resolution of the E-M5 (16MP) and the K20D (15MP) is fairly well matched but the E-M5 (Four Thirds) and K20D (APS-C) provide totally different sensor size.

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The E-M5 was launched 3 years after the K20D which is quite a sizable gap as far as technology is concerned. Both of the cameras feature different body design with the Olympus E-M5 being a SLR-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before getting into a detailed comparison, here is a concise overview of how the E-M5 grades versus the K20D in the way of portability, imaging, features and an overall mark.

Following is a sample of the gallery pictures for Olympus OM-D E-M5 and Pentax K20D. The complete galleries are available at Olympus E-M5 Gallery and Pentax K20D Gallery.

For anyone who is intending to travel with your camera often, you have to think about its weight and proportions. The Olympus E-M5 has outer dimensions of 122mm x 89mm x 43mm (4.8" x 3.5" x 1.7") accompanied by a weight of 425 grams (0.94 lbs) while the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs).

Check the Olympus E-M5 versus Pentax K20D in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you use at that moment. Here is a front view overall size comparison of the E-M5 compared to the K20D.

Taking into account dimensions and weight, the portability score of the E-M5 and K20D is 81 and 59 respectively.

Normally, it is very hard to envision the contrast between sensor dimensions only by reading through technical specs. The image underneath will help give you a more clear sense of the sensor dimensions in the E-M5 and K20D.

As you can tell, both cameras come with different megapixels and different sensor dimensions. The E-M5 because of its tinier sensor will make getting shallower DOF tougher and the Olympus E-M5 will resolve greater detail utilizing its extra 1MP. Greater resolution will make it easier to crop photos a good deal more aggressively. The fresher E-M5 is going to have a benefit when it comes to sensor innovation.