Pentax 645Z vs Pentax K-S2

Its time to look more in depth at the Pentax 645Z and Pentax K-S2, former being a Pro DSLR while the latter is a Entry-Level DSLR and they are both offered by Pentax. There is a noticeable difference among the resolutions of the 645Z (51MP) and K-S2 (20MP) and the 645Z (Medium format) and K-S2 (APS-C) posses totally different sensor sizes.

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The 645Z was brought out 10 months prior to the K-S2 which means that they are both of a similar age. Both of the cameras have different body design with the Pentax 645Z being a Large SLR camera and the Pentax K-S2 being a Compact SLR camera.

Before we go straight to a step-by-step comparison, here is a concise synopsis of how the 645Z matches up against the K-S2 in terms of portability, imaging, features and an overall grade.

Below is a preview of the gallery images for Pentax 645Z & Pentax K-S2. The entire galleries are available at Pentax 645Z Gallery & Pentax K-S2 Gallery.

For anybody who is planning to lug around your camera, you will want to think about its weight and volume. The Pentax 645Z has physical dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs) while the Pentax K-S2 has sizing of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") accompanied by a weight of 678 grams (1.49 lbs).

Check the Pentax 645Z and Pentax K-S2 in our brand new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ dependant on the lens you select during that time. Underneath is a front view scale comparison of the 645Z compared to the K-S2.

Taking into consideration size and weight, the portability rating of the 645Z and K-S2 is 49 and 64 respectively.

Often, it is tough to envision the gap in sensor measurements merely by researching technical specs. The photograph below will help provide you a greater sense of the sensor dimensions in the 645Z and K-S2.

As you have seen, both the cameras have different resolutions and different sensor measurements. The 645Z featuring a bigger sensor will make shooting shallow depth of field easier and the Pentax 645Z will render extra detail having its extra 31MP. Higher resolution will also let you crop shots a bit more aggressively. The older 645Z will be behind in sensor tech.