Pentax 645Z vs Sony H55

Lets look closer at the Pentax 645Z versus Sony H55, one is a Pro DSLR and the other is a Small Sensor Compact by companies Pentax and Sony. There exists a big gap between the image resolutions of the 645Z (51MP) and H55 (14MP) and the 645Z (Medium format) and H55 (1/2.3") come with totally different sensor sizing.

Photography Glossary

The 645Z was revealed 3 years after the H55 which is quite a big gap as far as technology is concerned. Both of the cameras come with different body type with the Pentax 645Z being a Large SLR camera and the Sony H55 being a Compact camera.

Before going through a full comparison, below is a quick introduction of how the 645Z matches up against the H55 with regard to portability, imaging, features and an overall score.

Here is a sample of the gallery pics for Pentax 645Z and Sony Cyber-shot DSC-H55. The full galleries are viewable at Pentax 645Z Gallery and Sony H55 Gallery.

In case you're planning to carry around your camera frequently, you have to take into account its weight and measurements. The Pentax 645Z provides exterior dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") along with a weight of 1550 grams (3.42 lbs) whilst the Sony H55 has proportions of 103mm x 58mm x 29mm (4.1" x 2.3" x 1.1") along with a weight of 200 grams (0.44 lbs).

Contrast the Pentax 645Z versus Sony H55 in the all new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have chosen at that moment. Following is the front view sizing comparison of the 645Z compared to the H55.

Looking at dimensions and weight, the portability score of the 645Z and H55 is 49 and 92 respectively.

Sometimes, its hard to see the gap between sensor sizes just by going over specifications. The pic here might offer you a stronger sense of the sensor sizes in the 645Z and H55.

Plainly, both of these cameras posses different resolutions and different sensor sizes. The 645Z having a larger sensor will make achieving shallow DOF less difficult and the Pentax 645Z will offer you extra detail because of its extra 37 Megapixels. Greater resolution will also make it easier to crop images somewhat more aggressively. The more modern 645Z will have an advantage when it comes to sensor innovation.