Pentax 645D vs Pentax K10D

In this write-up, we are evaluating the Pentax 645D vs Pentax K10D, former is a Pro DSLR while the other is a Advanced DSLR and they are both sold by Pentax. There is a sizable difference between the sensor resolutions of the 645D (40MP) and K10D (10MP) and the 645D (Medium format) and K10D (APS-C) come with totally different sensor sizing.

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The 645D was released 3 years after the K10D which is quite a significant difference as far as tech is concerned. Both the cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax K10D being a Mid-size SLR camera.

Before delving straight into a in depth comparison, below is a concise view of how the 645D matches up against the K10D with regard to portability, imaging, features and an overall score.

The following is a sample of the gallery pics for Pentax 645D & Pentax K10D. The complete galleries are provided at Pentax 645D Gallery & Pentax K10D Gallery.

For anybody who is intending to carry around your camera often, you are going to need to factor its weight and measurements. The Pentax 645D comes with outside measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") along with a weight of 1480 grams (3.26 lbs) while the Pentax K10D has proportions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 793 grams (1.75 lbs).

Check out the Pentax 645D vs Pentax K10D in our brand new Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary depending on the lens you select at that moment. The following is the front view dimension comparison of the 645D and the K10D.

Looking at size and weight, the portability score of the 645D and K10D is 50 and 59 respectively.

Oftentimes, its difficult to envision the difference between sensor sizes just by going over a spec sheet. The picture underneath may give you a better sense of the sensor sizing in the 645D and K10D.

Clearly, both of those cameras enjoy different megapixels and different sensor sizes. The 645D because of its larger sensor will make shooting bokeh less difficult and the Pentax 645D will offer you more detail as a result of its extra 30MP. Greater resolution will help you crop photos far more aggressively. The more modern 645D is going to have a benefit when it comes to sensor tech.