Pentax 645Z vs Sony A700

Let's look a little more closely at the Pentax 645Z versus Sony A700, one being a Pro DSLR and the other is a Advanced DSLR by competitors Pentax and Sony. There is a significant difference between the sensor resolutions of the 645Z (51MP) and A700 (12MP) and the 645Z (Medium format) and A700 (APS-C) posses different sensor sizes.

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The 645Z was announced 6 years later than the A700 and that is quite a sizable gap as far as tech is concerned. Both cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Sony A700 being a Mid-size SLR camera.

Before we go straight to a comprehensive comparison, here is a concise highlight of how the 645Z matches up versus the A700 in regards to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Pentax 645Z and Sony Alpha DSLR-A700. The whole galleries are viewable at Pentax 645Z Gallery and Sony A700 Gallery.

For those who are intending to carry your camera frequently, you have to think about its weight and size. The Pentax 645Z offers external measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs) while the Sony A700 has specifications of 142mm x 105mm x 80mm (5.6" x 4.1" x 3.1") and a weight of 768 grams (1.69 lbs).

Examine the Pentax 645Z versus Sony A700 in the latest Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change depending on the lens you are employing during that time. Following is a front view size comparison of the 645Z compared to the A700.

Taking into consideration size and weight, the portability score of the 645Z and A700 is 49 and 58 respectively.

Often, it's tough to imagine the difference between sensor sizing only by reading through technical specs. The visual underneath will provide you a more clear sense of the sensor sizing in the 645Z and A700.

As you can tell, both of these cameras come with different megapixel count and different sensor sizing. The 645Z with its larger sensor is going to make getting shallow depth of field simpler and the Pentax 645Z will give you more detail with its extra 39 Megapixels. Greater resolution will also let you crop photos a good deal more aggressively. The newer 645Z should have an advantage in sensor tech.