Pentax 645D vs Sony W730

Below, we are matching up the Pentax 645D versus Sony W730, one is a Pro DSLR and the other is a Small Sensor Compact by companies Pentax and Sony. There exists a huge gap among the sensor resolutions of the 645D (40MP) and W730 (16MP) and the 645D (Medium format) and W730 (1/2.3") come with different sensor size.

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The 645D was revealed 3 years before the W730 which is a fairly significant gap as far as camera technology is concerned. Both the cameras come with different body type with the Pentax 645D being a Large SLR camera and the Sony W730 being a Compact camera.

Before diving straight into a in-depth comparison, below is a quick summation of how the 645D grades vs the W730 in regards to portability, imaging, features and an overall mark.

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

When you are planning to travel with your camera, you need to factor in its weight and proportions. The Pentax 645D comes with external dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) whilst the Sony W730 has measurements of 93mm x 52mm x 22mm (3.7" x 2.0" x 0.9") and a weight of 122 grams (0.27 lbs).

Examine the Pentax 645D versus Sony W730 in the all new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are using during that time. Below is the front view measurements comparison of the 645D against the W730.

Taking into account dimensions and weight, the portability grade of the 645D and W730 is 50 and 96 respectively.

More often than not, its tough to picture the contrast in sensor dimensions only by viewing a spec sheet. The image here should provide you a greater sense of the sensor sizes in the 645D and W730.

Clearly, both of the cameras posses different resolutions and different sensor dimensions. The 645D having a larger sensor is going to make getting shallower DOF less difficult and the Pentax 645D will result in greater detail because of its extra 24 Megapixels. Greater resolution can also let you crop pics somewhat more aggressively. The more aged 645D will be behind in sensor innovation.