Pentax 645Z vs Sony W730

Here is a extended analysis of the Pentax 645Z versus Sony W730, one being a Pro DSLR and the latter is a Small Sensor Compact by manufacturers Pentax and Sony. There is a crucial difference among the sensor resolutions of the 645Z (51MP) and W730 (16MP) and the 645Z (Medium format) and W730 (1/2.3") enjoy totally different sensor sizes.

Photography Glossary

The 645Z was revealed 16 months later than the W730 which makes the cameras a generation apart from each other. Both of the cameras offer different body type with the Pentax 645Z being a Large SLR camera and the Sony W730 being a Compact camera.

Before delving straight into a more detailed comparison, below is a short highlight of how the 645Z grades against the W730 in terms of portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Pentax 645Z and Sony Cyber-shot DSC-W730. The full galleries are provided at Pentax 645Z Gallery and Sony W730 Gallery.

For anyone who is going to carry your camera regularly, you have to factor in its weight and dimensions. The Pentax 645Z features outside measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs) and the Sony W730 has dimensions of 93mm x 52mm x 22mm (3.7" x 2.0" x 0.9") with a weight of 122 grams (0.27 lbs).

Check out the Pentax 645Z versus Sony W730 in the latest Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing at that time. Here is the front view overall size comparison of the 645Z and the W730.

Factoring in size and weight, the portability rating of the 645Z and W730 is 49 and 96 respectively.

In many cases, its difficult to see the contrast in sensor sizing simply by going through technical specs. The visual underneath will help offer you a better sense of the sensor measurements in the 645Z and W730.

As you can tell, both of the cameras enjoy different resolutions and different sensor sizing. The 645Z using its bigger sensor will make achieving shallow depth of field easier and the Pentax 645Z will produce greater detail because of its extra 35MP. Higher resolution will help you crop pictures far more aggressively. The more modern 645Z will have an advantage when it comes to sensor innovation.