Pentax 645Z vs Pentax K10D

Its time to take a more detailed look at the Pentax 645Z and Pentax K10D, one is a Pro DSLR and the other is a Advanced DSLR and both are offered by Pentax. There exists a big gap among the image resolutions of the 645Z (51MP) and K10D (10MP) and the 645Z (Medium format) and K10D (APS-C) posses totally different sensor sizing.

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The 645Z was revealed 7 years after the K10D which is a fairly big gap as far as camera technology is concerned. Both of the cameras have different body design with the Pentax 645Z being a Large SLR camera and the Pentax K10D being a Mid-size SLR camera.

Before diving into a comprehensive comparison, here is a simple summation of how the 645Z matches up against the K10D with regards to portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Pentax 645Z and Pentax K10D. The full galleries are available at Pentax 645Z Gallery and Pentax K10D Gallery.

If you're aiming to travel with your camera regularly, you have to factor its weight and measurements. The Pentax 645Z comes with external dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs) and the Pentax K10D has proportions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") accompanied by a weight of 793 grams (1.75 lbs).

Contrast the Pentax 645Z and Pentax K10D in the all new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary based on the lens you have at that time. Below is a front view overall size comparison of the 645Z against the K10D.

Using dimensions and weight, the portability score of the 645Z and K10D is 49 and 59 respectively.

More often than not, it is very difficult to see the contrast in sensor dimensions purely by looking through a spec sheet. The pic below will offer you a stronger sense of the sensor sizes in the 645Z and K10D.

Clearly, both of these cameras provide different megapixel count and different sensor dimensions. The 645Z with its larger sensor will make getting shallower depth of field simpler and the Pentax 645Z will render greater detail because of its extra 41 Megapixels. Greater resolution can also help you crop images more aggressively. The younger 645Z is going to have an advantage in sensor innovation.