Pentax 645Z vs Sony A330

Let's look closer at the Pentax 645Z and Sony A330, former being a Pro DSLR while the other is a Entry-Level DSLR by companies Pentax and Sony. There is a large difference among the image resolutions of the 645Z (51MP) and A330 (10MP) and the 645Z (Medium format) and A330 (APS-C) posses totally different sensor sizes.

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The 645Z was released 4 years later than the A330 and that is a fairly serious difference as far as camera tech is concerned. Both of the cameras have different body design with the Pentax 645Z being a Large SLR camera and the Sony A330 being a Compact SLR camera.

Before getting into a thorough comparison, here is a brief view of how the 645Z grades vs the A330 in regards to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Pentax 645Z & Sony Alpha DSLR-A330. The complete galleries are provided at Pentax 645Z Gallery & Sony A330 Gallery.

If you are intending to carry your camera often, you should factor in its weight and proportions. The Pentax 645Z enjoys exterior dimensions 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 A330 has measurements of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") having a weight of 529 grams (1.17 lbs).

Take a look at the Pentax 645Z and Sony A330 in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary based on the lens you select at that time. The following is a front view size comparison of the 645Z compared to the A330.

Considering size and weight, the portability grade of the 645Z and A330 is 49 and 67 respectively.

Often, its hard to envision the gap in sensor sizing just by viewing specifications. The graphic here will help offer you a clearer sense of the sensor dimensions in the 645Z and A330.

To sum up, each of the cameras provide different megapixels and different sensor sizing. The 645Z due to its larger sensor will make getting bokeh easier and the Pentax 645Z will result in more detail as a result of its extra 41MP. Greater resolution will also let you crop pics more aggressively. The more modern 645Z will have an advantage with regard to sensor innovation.