Pentax 645Z vs Pentax K-3

Following is a thorough assessment of the Pentax 645Z versus Pentax K-3, former is a Pro DSLR while the other is a Advanced DSLR and both are manufactured by Pentax. There is a substantial difference among the resolutions of the 645Z (51MP) and K-3 (24MP) and the 645Z (Medium format) and K-3 (APS-C) feature totally different sensor dimensions.

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The 645Z was revealed very close to the K-3 so they are of a similar age. Both the cameras come with different body type with the Pentax 645Z being a Large SLR camera and the Pentax K-3 being a Mid-size SLR camera.

Before getting in to a more detailed comparison, below is a brief view of how the 645Z scores vs the K-3 when it comes to portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Pentax 645Z & Pentax K-3. The full galleries are provided at Pentax 645Z Gallery & Pentax K-3 Gallery.

When you are planning to carry around your camera regularly, you need to factor in its weight and volume. The Pentax 645Z has exterior measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs) whilst the Pentax K-3 has sizing of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs).

Compare the Pentax 645Z versus Pentax K-3 in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will vary dependant on the lens you are employing at the time. The following is the front view size comparison of the 645Z versus the K-3.

Considering size and weight, the portability grade of the 645Z and K-3 is 49 and 59 respectively.

Generally, it can be difficult to visualise the contrast in sensor sizes just by checking out specs. The picture here will provide you a greater sense of the sensor measurements in the 645Z and K-3.

As you can plainly see, each of the cameras have got different resolutions and different sensor sizes. The 645Z with its larger sensor will make achieving shallow depth of field simpler and the Pentax 645Z will provide more detail because of its extra 27MP. Greater resolution will allow you to crop pics much more aggressively.