Panasonic GX850 vs Pentax K20D

Following is a extensive comparison of the Panasonic GX850 and Pentax K20D, former is a Entry-Level Mirrorless while the other is a Advanced DSLR by rivals Panasonic and Pentax. The image resolution of the GX850 (16MP) and the K20D (15MP) is very similar but the GX850 (Four Thirds) and K20D (APS-C) come with different sensor dimensions.

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The GX850 was introduced 8 years after the K20D which is quite a serious difference as far as technology is concerned. Both of these cameras offer different body type with the Panasonic GX850 being a Rangefinder-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before diving in to a in depth comparison, below is a short synopsis of how the GX850 matches up against the K20D when considering portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Panasonic Lumix DMC-GX850 & Pentax K20D. The whole galleries are viewable at Panasonic GX850 Gallery & Pentax K20D Gallery.

If you are going to carry around your camera, you will need to consider its weight and dimensions. The Panasonic GX850 provides outside dimensions of 107mm x 65mm x 33mm (4.2" x 2.6" x 1.3") having a weight of 269 grams (0.59 lbs) and the Pentax K20D has dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

See the Panasonic GX850 and Pentax K20D in our completely new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ based on the lens you select at that moment. Following is the front view sizing comparison of the GX850 vs the K20D.

Considering dimensions and weight, the portability grade of the GX850 and K20D is 90 and 59 respectively.

Typically, it can be difficult to imagine the difference between sensor sizes just by reviewing a spec sheet. The picture below will give you a better sense of the sensor dimensions in the GX850 and K20D.

Clearly, both of those cameras enjoy different megapixels and different sensor sizes. The GX850 having a tinier sensor is going to make getting shallow depth of field more challenging and the Panasonic GX850 will deliver more detail using its extra 1MP. Greater resolution will also make it easier to crop photos far more aggressively. The newer GX850 should have a benefit in sensor innovation.