Pentax 645Z vs Pentax Q

Below, we will be reviewing the Pentax 645Z and Pentax Q, former is a Pro DSLR while the latter is a Entry-Level Mirrorless and they are both offered by Pentax. There is a noticeable difference between the sensor resolutions of the 645Z (51MP) and Q (12MP) and the 645Z (Medium format) and Q (1/2.3") come with different sensor size.

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The 645Z was unveiled 2 years after the Q which is quite a sizable difference as far as tech is concerned. Both of these cameras come with different body type with the Pentax 645Z being a Large SLR camera and the Pentax Q being a Rangefinder-style mirrorless camera.

Before delving straight into a comprehensive comparison, below is a short overview of how the 645Z matches up against the Q in relation to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Pentax 645Z & Pentax Q. The full galleries are available at Pentax 645Z Gallery & Pentax Q Gallery.

For anyone who is planning to carry around your camera regularly, you'll need to factor its weight and proportions. The Pentax 645Z has exterior measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs) and the Pentax Q has measurements of 98mm x 57mm x 31mm (3.9" x 2.2" x 1.2") having a weight of 180 grams (0.40 lbs).

Take a look at the Pentax 645Z and Pentax Q in our completely new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ based on the lens you choose at that time. Here is the front view measurement comparison of the 645Z compared to the Q.

Taking into consideration size and weight, the portability grade of the 645Z and Q is 49 and 93 respectively.

Generally, it is tough to visualize the contrast between sensor sizes purely by checking specifications. The pic below will give you a much better sense of the sensor measurements in the 645Z and Q.

Plainly, both of the cameras have got different megapixel count and different sensor sizes. The 645Z with its bigger sensor is going to make achieving shallow DOF easier and the Pentax 645Z will resolve extra detail having an extra 39 Megapixels. Higher resolution can also enable you to crop shots much more aggressively. The newer 645Z should have an advantage when it comes to sensor technology.