Pentax 645Z vs Pentax K-3 II

Let's take a closer look at the Pentax 645Z versus Pentax K-3 II, one being a Pro DSLR and the other is a Advanced DSLR and they are both produced by Pentax. There is a sizeable difference between the sensor resolutions of the 645Z (51MP) and K-3 II (24MP) and the 645Z (Medium format) and K-3 II (APS-C) use totally different sensor sizing.

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The 645Z was unveiled 12 months prior to the K-3 II and they are both of a similar generation. Both of these cameras come with different body type with the Pentax 645Z being a Large SLR camera and the Pentax K-3 II being a Mid-size SLR camera.

Before going straight into a in-depth comparison, below is a concise introduction of how the 645Z matches up against the K-3 II in terms of portability, imaging, features and an overall rating.

Here is a sample of the gallery pics for Pentax 645Z and Pentax K-3 II. The full galleries are available at Pentax 645Z Gallery and Pentax K-3 II Gallery.

For anyone who is looking to carry your camera, you'll need to take into account its weight and measurements. The Pentax 645Z enjoys external 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) while the Pentax K-3 II has proportions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs).

Look at the Pentax 645Z versus Pentax K-3 II in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have chosen during that time. Below is the front view dimension comparison of the 645Z versus the K-3 II.

Taking into consideration size and weight, the portability grade of the 645Z and K-3 II is 49 and 59 respectively.

Oftentimes, it can be tough to visualise the contrast between sensor sizing merely by going over specs. The visual here will provide you a clearer sense of the sensor sizing in the 645Z and K-3 II.

As you can plainly see, both of those cameras have got different resolutions and different sensor sizing. The 645Z with its larger sensor will make achieving shallow depth of field less difficult and the Pentax 645Z will offer more detail having an extra 27MP. Greater resolution can also make it easier to crop images much more aggressively. The older 645Z is going to be behind in sensor tech.