Pentax 645D vs Pentax K20D

Its time to look closer at the Pentax 645D versus Pentax K20D, one is a Pro DSLR and the latter is a Advanced DSLR and they are both designed by Pentax. There exists a sizeable gap among the image resolutions of the 645D (40MP) and K20D (15MP) and the 645D (Medium format) and K20D (APS-C) come with totally different sensor dimensions.

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The 645D was revealed 21 months after the K20D which makes the cameras a generation away from one another. Both the cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax K20D being a Mid-size SLR camera.

Before we go through a step-by-step comparison, below is a brief summation of how the 645D matches up vs the K20D for portability, imaging, features and an overall score.

Here is a preview of the gallery images for Pentax 645D and Pentax K20D. The full galleries are provided at Pentax 645D Gallery and Pentax K20D Gallery.

For those who are going to carry around your camera frequently, you'll have to factor in its weight and measurements. The Pentax 645D comes with external measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) and the Pentax K20D has proportions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).

Check out the Pentax 645D versus Pentax K20D in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you use at the time. Below is the front view proportions comparison of the 645D compared to the K20D.

Factoring in dimensions and weight, the portability grade of the 645D and K20D is 50 and 59 respectively.

Quite often, it can be hard to visualise the contrast in sensor sizes only by looking through specifications. The pic underneath will give you a better sense of the sensor sizing in the 645D and K20D.

Plainly, the two cameras offer different megapixel count and different sensor sizes. The 645D having a bigger sensor will make getting bokeh easier and the Pentax 645D will render greater detail because of its extra 25 Megapixels. Higher resolution will also make it easier to crop shots a little more aggressively. The more modern 645D will have an edge when it comes to sensor technology.