Pentax WG-3 GPS vs Sigma SD9

Following is a complete assessment of the Pentax WG-3 GPS and Sigma SD9, one is a Waterproof and the other is a Advanced DSLR by manufacturers Pentax and Sigma. There exists a big gap among the image resolutions of the WG-3 GPS (16MP) and SD9 (3MP) and the WG-3 GPS (1/2.3") and SD9 (APS-C) boast different sensor sizes.

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The WG-3 GPS was brought out 10 years after the SD9 which is a fairly big gap as far as camera technology is concerned. Each of the cameras feature different body design with the Pentax WG-3 GPS being a Compact camera and the Sigma SD9 being a Mid-size SLR camera.

Before we go straight to a full comparison, here is a short highlight of how the WG-3 GPS matches up vs the SD9 in regards to portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Pentax WG-3 GPS and Sigma SD9. The entire galleries are provided at Pentax WG-3 GPS Gallery and Sigma SD9 Gallery.

For those who are looking to carry around your camera, you will have to factor in its weight and proportions. The Pentax WG-3 GPS comes with outer measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") along with a weight of 238 grams (0.52 lbs) whilst the Sigma SD9 has measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") accompanied by a weight of 950 grams (2.09 lbs).

Examine the Pentax WG-3 GPS and Sigma SD9 in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you have chosen at that time. Below is a front view proportions comparison of the WG-3 GPS compared to the SD9.

Taking into consideration dimensions and weight, the portability grade of the WG-3 GPS and SD9 is 90 and 54 respectively.

Normally, its tough to visualize the difference in sensor sizes only by checking out technical specs. The image underneath will offer you a much better sense of the sensor sizing in the WG-3 GPS and SD9.

As you can tell, both of these cameras come with different megapixels and different sensor sizes. The WG-3 GPS due to its smaller sensor is going to make shooting shallow DOF trickier and the Pentax WG-3 GPS will produce extra detail having its extra 13 Megapixels. Greater resolution can also let you crop pics a good deal more aggressively. The fresher WG-3 GPS should have an advantage when it comes to sensor innovation.