Pentax 645Z vs Pentax K-70

Here, we are reviewing the Pentax 645Z vs Pentax K-70, one is a Pro DSLR and the other is a Entry-Level DSLR and they are both designed by Pentax. There is a huge difference between the image resolutions of the 645Z (51MP) and K-70 (24MP) and the 645Z (Medium format) and K-70 (APS-C) posses totally different sensor dimensions.

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The 645Z was released 3 years before the K-70 which is quite a significant gap as far as tech is concerned. The two cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Pentax K-70 being a Compact SLR camera.

Before getting into a thorough comparison, here is a concise overview of how the 645Z matches up versus the K-70 in the way of portability, imaging, features and an overall score.

Following is a sample of the gallery pictures for Pentax 645Z and Pentax K-70. The complete galleries are viewable at Pentax 645Z Gallery and Pentax K-70 Gallery.

If you're looking to carry around your camera frequently, you should take into account its weight and volume. The Pentax 645Z has exterior measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") along with a weight of 1550 grams (3.42 lbs) while the Pentax K-70 has sizing of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") accompanied by a weight of 688 grams (1.52 lbs).

Examine the Pentax 645Z vs Pentax K-70 in the all new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are working with at that moment. The following is a front view size comparison of the 645Z compared to the K-70.

Taking into consideration size and weight, the portability grade of the 645Z and K-70 is 49 and 62 respectively.

In many cases, it is tough to visualise the difference between sensor sizes purely by going over technical specs. The image underneath will help give you a greater sense of the sensor sizing in the 645Z and K-70.

As you have seen, both of the cameras feature different resolutions and different sensor sizes. The 645Z because of its larger sensor will make shooting shallow depth of field less difficult and the Pentax 645Z will offer extra detail as a result of its extra 27 Megapixels. Greater resolution will let you crop images way more aggressively. The more aged 645Z is going to be disadvantaged with regard to sensor tech.