Panasonic GX1 vs Pentax K20D

The following is a in-depth overview of the Panasonic GX1 and Pentax K20D, former is a Entry-Level Mirrorless while the latter is a Advanced DSLR by brands Panasonic and Pentax. The sensor resolution of the GX1 (16MP) and the K20D (15MP) is relatively close but the GX1 (Four Thirds) and K20D (APS-C) offer totally different sensor dimensions.

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The GX1 was introduced 3 years after the K20D which is a fairly big difference as far as camera technology is concerned. Both the cameras feature different body design with the Panasonic GX1 being a Rangefinder-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before going straight to a comprehensive comparison, here is a simple summation of how the GX1 grades versus the K20D in relation to portability, imaging, features and an overall mark.

Following is a preview of the gallery photos for Panasonic Lumix DMC-GX1 & Pentax K20D. The whole galleries are viewable at Panasonic GX1 Gallery & Pentax K20D Gallery.

For anyone who is intending to travel with your camera regularly, you'll need to consider its weight and proportions. The Panasonic GX1 features external dimensions of 116mm x 68mm x 39mm (4.6" x 2.7" x 1.5") with a weight of 318 grams (0.70 lbs) while the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).

Look at the Panasonic GX1 and Pentax K20D in our newest Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ dependant on the lens you are working with during that time. Following is a front view size comparison of the GX1 and the K20D.

Looking at dimensions and weight, the portability rating of the GX1 and K20D is 87 and 59 respectively.

More often than not, it is very difficult to envision the difference in sensor dimensions only by looking through a spec sheet. The image below will give you a greater sense of the sensor dimensions in the GX1 and K20D.

Clearly, each of these cameras come with different megapixels and different sensor dimensions. The GX1 using its smaller sensor will make shooting shallow DOF more challenging and the Panasonic GX1 will result in extra detail using its extra 1 Megapixels. Higher resolution can also let you crop photographs a good deal more aggressively. The younger GX1 is going to have an edge when it comes to sensor tech.