Pentax WG-3 GPS vs Sigma SD1

On this page, we are looking at the Pentax WG-3 GPS vs Sigma SD1, one is a Waterproof and the other is a Advanced DSLR by competitors Pentax and Sigma. The image resolution of the WG-3 GPS (16MP) and the SD1 (15MP) is fairly similar but the WG-3 GPS (1/2.3") and SD1 (APS-C) boast different sensor sizes.

Apple Innovates by Creating Next-Level Optical Stabilization for iPhone

The WG-3 GPS was brought out 2 years after the SD1 which is quite a large gap as far as tech is concerned. Each of the cameras have different body design with the Pentax WG-3 GPS being a Compact camera and the Sigma SD1 being a Mid-size SLR camera.

Before going straight to a full comparison, here is a simple summation of how the WG-3 GPS scores versus the SD1 with regard to portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Pentax WG-3 GPS and Sigma SD1. The entire galleries are provided at Pentax WG-3 GPS Gallery and Sigma SD1 Gallery.

When you are planning to carry around your camera often, you should take into account its weight and proportions. The Pentax WG-3 GPS enjoys outer dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") accompanied by a weight of 238 grams (0.52 lbs) whilst the Sigma SD1 has measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") and a weight of n/a grams (0.00 lbs).

Check the Pentax WG-3 GPS vs Sigma SD1 in the latest Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have chosen at the time. Following is a front view size comparison of the WG-3 GPS and the SD1.

Considering size and weight, the portability rating of the WG-3 GPS and SD1 is 90 and 77 respectively.

In many cases, its hard to visualize the gap between sensor sizes purely by reading specifications. The image underneath will offer you a more clear sense of the sensor dimensions in the WG-3 GPS and SD1.

Plainly, both cameras have different megapixels and different sensor sizes. The WG-3 GPS featuring a tinier sensor is going to make getting shallower DOF more difficult and the Pentax WG-3 GPS will offer extra detail having its extra 1MP. Greater resolution will allow you to crop photos a bit more aggressively. The more recent WG-3 GPS should have an advantage with regard to sensor tech.