Pentax K20D vs Sony A6400

Let's look a little more closely at the Pentax K20D vs Sony A6400, former being a Advanced DSLR while the other is a Advanced Mirrorless by rivals Pentax and Sony. There exists a substantial gap between the sensor resolutions of the K20D (15MP) and A6400 (24MP) but both cameras posses the identical sensor measurements (APS-C).

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The K20D was introduced 11 years prior to the A6400 and that is quite a big difference as far as technology is concerned. Each of these cameras feature different body design with the Pentax K20D being a Mid-size SLR camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before we go straight to a in depth comparison, here is a brief overview of how the K20D scores against the A6400 when it comes to portability, imaging, features and an overall grade.

Following is a sample of the gallery pics for Pentax K20D & Sony Alpha a6400. The whole galleries are viewable at Pentax K20D Gallery & Sony A6400 Gallery.

When you are aiming to lug around your camera frequently, you will need to factor its weight and volume. The Pentax K20D comes with exterior dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") along with a weight of 800 grams (1.76 lbs) whilst the Sony A6400 has sizing of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") accompanied by a weight of 403 grams (0.89 lbs).

Compare the Pentax K20D vs Sony A6400 in our brand new Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will change dependant on the lens you choose at the time. Below is a front view measurement comparison of the K20D and the A6400.

Considering dimensions and weight, the portability score of the K20D and A6400 is 59 and 83 respectively.

More often than not, its difficult to visualize the gap between sensor measurements just by looking at technical specs. The photograph below will provide you a much better sense of the sensor sizes in the K20D and A6400.

As you can tell, each of the cameras come with the identical sensor size but different MP. You can expect to see the Sony A6400 to resolve greater detail using its extra 9 Megapixels. Greater resolution will also help you crop photos a good deal more aggressively. The older K20D is going to be behind with regard to sensor tech.