Pentax 645Z vs Pentax P70

Let's take a closer look at the Pentax 645Z vs Pentax P70, former is a Pro DSLR while the latter is a Ultracompact and both are produced by Pentax. There is a sizable difference between the image resolutions of the 645Z (51MP) and P70 (12MP) and the 645Z (Medium format) and P70 (1/2.3") provide totally different sensor sizing.

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The 645Z was introduced 5 years after the P70 which is quite a significant difference as far as tech is concerned. Each of these cameras have different body design with the Pentax 645Z being a Large SLR camera and the Pentax P70 being a Ultracompact camera.

Before we go into a more detailed comparison, here is a concise highlight of how the 645Z scores vs the P70 with regard to portability, imaging, features and an overall score.

Here is a preview of the gallery photos for Pentax 645Z & Pentax Optio P70. The whole galleries are viewable at Pentax 645Z Gallery & Pentax P70 Gallery.

For anyone who is intending to carry around your camera regularly, you'll need to take into account its weight and dimensions. The Pentax 645Z has got outer measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs) whilst the Pentax P70 has dimensions of 97mm x 54mm x 22mm (3.8" x 2.1" x 0.9") accompanied by a weight of 155 grams (0.34 lbs).

Compare the Pentax 645Z vs Pentax P70 in our newest Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ depending on the lens you are utilizing at the time. Following is a front view size comparison of the 645Z against the P70.

Factoring in size and weight, the portability score of the 645Z and P70 is 49 and 95 respectively.

Usually, it's hard to visualise the difference between sensor sizes purely by reading through a spec sheet. The image underneath will provide you a better sense of the sensor measurements in the 645Z and P70.

Clearly, both of these cameras provide different megapixels and different sensor sizes. The 645Z using its bigger sensor will make shooting shallower DOF simpler and the Pentax 645Z will give extra detail using its extra 39 Megapixels. Higher resolution can also allow you to crop pictures more aggressively. The more recent 645Z will have a benefit with regard to sensor technology.