Nikon S31 vs Pentax 645Z

In this article, we will be reviewing the Nikon S31 and Pentax 645Z, one is a Waterproof and the latter is a Pro DSLR by brands Nikon and Pentax. There is a crucial difference among the sensor resolutions of the S31 (10MP) and 645Z (51MP) and the S31 (1/2.9") and 645Z (Medium format) feature totally different sensor size.

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The S31 was announced 9 months before the 645Z so they are of a similar generation. Both of these cameras offer different body type with the Nikon S31 being a Compact camera and the Pentax 645Z being a Large SLR camera.

Before we go in to a more detailed comparison, below is a simple summation of how the S31 matches up vs the 645Z in regards to portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Nikon Coolpix S31 and Pentax 645Z. The whole galleries are available at Nikon S31 Gallery and Pentax 645Z Gallery.

When you are planning to travel with your camera, you are going to need to consider its weight and dimensions. The Nikon S31 has got exterior dimensions of 105mm x 65mm x 42mm (4.1" x 2.6" x 1.7") having a weight of 185 grams (0.41 lbs) while the Pentax 645Z has 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).

Examine the Nikon S31 and Pentax 645Z in the all new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilizing at that time. Following is the front view measurements comparison of the S31 versus the 645Z.

Taking into account size and weight, the portability rating of the S31 and 645Z is 90 and 49 respectively.

Often, it is tough to envision the gap in sensor dimensions merely by going through specifications. The image here might provide you a much better sense of the sensor dimensions in the S31 and 645Z.

To sum up, both of the cameras enjoy different resolutions and different sensor dimensions. The S31 with its smaller sensor will make getting shallower depth of field trickier and the Pentax 645Z will provide extra detail with its extra 41MP. Higher resolution can also allow you to crop photographs far more aggressively. The more aged S31 will be behind with regard to sensor innovation.