Pentax 645Z vs Sony A6300

On this page, we are comparing the Pentax 645Z versus Sony A6300, one being a Pro DSLR and the other is a Advanced Mirrorless by companies Pentax and Sony. There exists a huge gap between the sensor resolutions of the 645Z (51MP) and A6300 (24MP) and the 645Z (Medium format) and A6300 (APS-C) posses totally different sensor size.

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The 645Z was released 21 months prior to the A6300 making them a generation apart from one another. Both cameras have different body design with the Pentax 645Z being a Large SLR camera and the Sony A6300 being a Rangefinder-style mirrorless camera.

Before getting straight to a full comparison, here is a short highlight of how the 645Z matches up versus the A6300 in terms of portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Pentax 645Z and Sony Alpha a6300. The complete galleries are viewable at Pentax 645Z Gallery and Sony A6300 Gallery.

For anyone who is planning to carry your camera frequently, you have to factor in its weight and measurements. The Pentax 645Z features outside dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs) and the Sony A6300 has proportions of 120mm x 67mm x 49mm (4.7" x 2.6" x 1.9") having a weight of 404 grams (0.89 lbs).

Analyze the Pentax 645Z versus Sony A6300 in the new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you select at that time. Underneath is a front view measurement comparison of the 645Z against the A6300.

Taking into account dimensions and weight, the portability score of the 645Z and A6300 is 49 and 83 respectively.

Quite often, it can be difficult to envision the difference between sensor sizing simply by checking specs. The photograph below should offer you a greater sense of the sensor sizes in the 645Z and A6300.

As you can plainly see, both cameras have different megapixels and different sensor sizing. The 645Z due to its larger sensor will make achieving shallower depth of field easier and the Pentax 645Z will resolve more detail as a result of its extra 27 Megapixels. Greater resolution can also let you crop photos a bit more aggressively. The older 645Z is going to be disadvantaged in sensor tech.