Panasonic GM5 vs Pentax K20D

Below, we are analyzing the Panasonic GM5 vs Pentax K20D, one is a Entry-Level Mirrorless and the other is a Advanced DSLR by rivals Panasonic and Pentax. The image resolution of the GM5 (16MP) and the K20D (15MP) is very well matched but the GM5 (Four Thirds) and K20D (APS-C) possess different sensor sizing.

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The GM5 was introduced 6 years after the K20D which is quite a sizable gap as far as tech is concerned. Both the cameras come with different body type with the Panasonic GM5 being a Rangefinder-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before we go straight into a comprehensive comparison, below is a quick overview of how the GM5 grades versus the K20D with respect to portability, imaging, features and an overall mark.

Below is a sample of the gallery pics for Panasonic Lumix DMC-GM5 and Pentax K20D. The whole galleries are available at Panasonic GM5 Gallery and Pentax K20D Gallery.

If you're aiming to travel with your camera often, you'll have to factor its weight and proportions. The Panasonic GM5 offers outer measurements of 99mm x 60mm x 36mm (3.9" x 2.4" x 1.4") accompanied by a weight of 211 grams (0.47 lbs) whilst the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") along with a weight of 800 grams (1.76 lbs).

See the Panasonic GM5 vs Pentax K20D in the new Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you are using during that time. Below is the front view size comparison of the GM5 versus the K20D.

Taking into consideration size and weight, the portability rating of the GM5 and K20D is 91 and 59 respectively.

Generally, it can be difficult to visualize the gap between sensor dimensions simply by looking at technical specs. The image below will help give you a better sense of the sensor sizing in the GM5 and K20D.

As you can tell, each of these cameras posses different resolutions and different sensor dimensions. The GM5 with its tinier sensor is going to make achieving bokeh trickier and the Panasonic GM5 will give you greater detail using its extra 1 Megapixels. Greater resolution will allow you to crop pics somewhat more aggressively. The fresher GM5 should have an edge in sensor technology.