Nikon S31 vs Pentax RZ18

Its time to look a bit more closely at the Nikon S31 and Pentax RZ18, one is a Waterproof and the latter is a Small Sensor Superzoom by rivals Nikon and Pentax. There exists a sizeable gap between the sensor resolutions of the S31 (10MP) and RZ18 (16MP) and the S31 (1/2.9") and RZ18 (1/2.3") come with totally different sensor size.

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The S31 was released 22 months after the RZ18 which makes the cameras a generation away from one another. Both of the cameras come with the identical body type (Compact).

Before diving in to a thorough comparison, below is a concise summation of how the S31 scores versus the RZ18 with regard to portability, imaging, features and an overall mark.

The following is a preview of the gallery images for Nikon Coolpix S31 and Pentax Optio RZ18. The complete galleries are available at Nikon S31 Gallery and Pentax RZ18 Gallery.

If you are going to travel with your camera regularly, you will have to take into account its weight and measurements. The Nikon S31 offers outside measurements of 105mm x 65mm x 42mm (4.1" x 2.6" x 1.7") accompanied by a weight of 185 grams (0.41 lbs) whilst the Pentax RZ18 has proportions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") along with a weight of 178 grams (0.39 lbs).

Check out the Nikon S31 and Pentax RZ18 in the all new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are using at that moment. The following is the front view dimensions comparison of the S31 versus the RZ18.

Considering dimensions and weight, the portability grade of the S31 and RZ18 is 90 and 92 respectively.

Normally, it is difficult to visualise the difference between sensor dimensions only by reviewing specs. The pic here should offer you a clearer sense of the sensor measurements in the S31 and RZ18.

As you can plainly see, both of these cameras have got different resolutions and different sensor dimensions. The S31 featuring a tinier sensor will make shooting shallower depth of field harder and the Pentax RZ18 will offer extra detail as a result of its extra 6 Megapixels. Higher resolution will also let you crop pictures much more aggressively. The newer S31 will have an advantage in sensor tech.