Panasonic GX9 vs Pentax K20D

On this page, we will be reviewing the Panasonic GX9 versus Pentax K20D, one is a Advanced Mirrorless and the latter is a Advanced DSLR by companies Panasonic and Pentax. There exists a sizeable gap among the image resolutions of the GX9 (20MP) and K20D (15MP) and the GX9 (Four Thirds) and K20D (APS-C) boast different sensor measurements.

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The GX9 was brought out 9 years after the K20D which is a fairly large gap as far as camera technology is concerned. Each of the cameras have different body design with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before going right into a in depth comparison, here is a simple synopsis of how the GX9 grades against the K20D with regard to portability, imaging, features and an overall score.

This is a preview of the gallery images for Panasonic Lumix DC-GX9 and Pentax K20D. The entire galleries are provided at Panasonic GX9 Gallery and Pentax K20D Gallery.

In case you're going to carry around your camera, you'll need to factor its weight and size. The Panasonic GX9 provides exterior dimensions of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") with a weight of 407 grams (0.90 lbs) whilst the Pentax K20D has specifications 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 Panasonic GX9 versus Pentax K20D in the new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change based on the lens you have chosen at the time. Underneath is a front view measurements comparison of the GX9 compared to the K20D.

Considering dimensions and weight, the portability score of the GX9 and K20D is 82 and 59 respectively.

Typically, it can be hard to visualize the contrast in sensor sizes purely by going through a spec sheet. The picture here will give you a greater sense of the sensor sizes in the GX9 and K20D.

As you can see, the 2 cameras provide different resolutions and different sensor sizes. The GX9 due to its smaller sensor is going to make achieving shallow depth of field trickier and the Panasonic GX9 will produce extra detail having its extra 5 Megapixels. Higher resolution will make it easier to crop shots more aggressively. The more recent GX9 provides an advantage with regard to sensor tech.