Pentax 645Z vs Sony A65

Here, we will be looking at the Pentax 645Z versus Sony A65, former being a Pro DSLR while the latter is a Entry-Level DSLR by competitors Pentax and Sony. There is a considerable difference between the sensor resolutions of the 645Z (51MP) and A65 (24MP) and the 645Z (Medium format) and A65 (APS-C) offer totally different sensor sizing.

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The 645Z was announced 2 years later than the A65 and that is quite a large difference as far as tech is concerned. Both of the cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Sony A65 being a Compact SLR camera.

Before going straight to a comprehensive comparison, here is a brief overview of how the 645Z scores versus the A65 in relation to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Pentax 645Z & Sony SLT-A65. The whole galleries are provided at Pentax 645Z Gallery & Sony A65 Gallery.

For anybody who is planning to carry your camera, you'll have to factor its weight and measurements. The Pentax 645Z features outer 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 Sony A65 has proportions of 132mm x 97mm x 81mm (5.2" x 3.8" x 3.2") having a weight of 622 grams (1.37 lbs).

Contrast the Pentax 645Z versus Sony A65 in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ depending on the lens you are working with at that time. Following is a front view size comparison of the 645Z vs the A65.

Taking into account size and weight, the portability score of the 645Z and A65 is 49 and 64 respectively.

Usually, its tough to visualise the gap between sensor sizing purely by reading specifications. The visual here might provide you a clearer sense of the sensor measurements in the 645Z and A65.

Plainly, both the cameras come with different megapixels and different sensor sizing. The 645Z using its bigger sensor will make getting bokeh simpler and the Pentax 645Z will offer you more detail with its extra 27MP. Higher resolution can also enable you to crop photographs a good deal more aggressively. The newer 645Z is going to have a benefit in sensor tech.