Olympus VG-120 vs Pentax 645Z

Following is a thorough analysis of the Olympus VG-120 vs Pentax 645Z, one is a Ultracompact and the latter is a Pro DSLR by brands Olympus and Pentax. There is a big difference between the sensor resolutions of the VG-120 (14MP) and 645Z (51MP) and the VG-120 (1/2.3") and 645Z (Medium format) boast totally different sensor dimensions.

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The VG-120 was released 4 years prior to the 645Z which is quite a big gap as far as tech is concerned. Each of these cameras feature different body design with the Olympus VG-120 being a Ultracompact camera and the Pentax 645Z being a Large SLR camera.

Before going into a thorough comparison, here is a brief summary of how the VG-120 scores versus the 645Z when considering portability, imaging, features and an overall score.

Here is a preview of the gallery photos for Olympus VG-120 and Pentax 645Z. The complete galleries are provided at Olympus VG-120 Gallery and Pentax 645Z Gallery.

When you are going to carry around your camera often, you are going to need to take into account its weight and size. The Olympus VG-120 enjoys outer measurements of 96mm x 57mm x 19mm (3.8" x 2.2" x 0.7") and a weight of 120 grams (0.26 lbs) while the Pentax 645Z has specifications of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") along with a weight of 1550 grams (3.42 lbs).

See the Olympus VG-120 vs Pentax 645Z in the all new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at the time. Below is a front view overall size comparison of the VG-120 compared to the 645Z.

Using size and weight, the portability rating of the VG-120 and 645Z is 96 and 49 respectively.

Generally, it's tough to visualise the gap between sensor sizes only by going over technical specs. The image below may give you a clearer sense of the sensor sizing in the VG-120 and 645Z.

As you have seen, the two cameras feature different megapixels and different sensor sizes. The VG-120 due to its tinier sensor will make shooting bokeh trickier and the Pentax 645Z will offer you extra detail as a result of its extra 37 Megapixels. Higher resolution will enable you to crop pictures way more aggressively. The more aged VG-120 is going to be behind when it comes to sensor technology.