Canon SX120 IS vs Pentax WG-3 GPS

Let's take a deeper look at the Canon SX120 IS and Pentax WG-3 GPS, one being a Small Sensor Compact and the other is a Waterproof by competitors Canon and Pentax. There exists a significant gap among the sensor resolutions of the SX120 IS (10MP) and WG-3 GPS (16MP) and the SX120 IS (1/2.5") and WG-3 GPS (1/2.3") possess different sensor dimensions.

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The SX120 IS was announced 4 years earlier than the WG-3 GPS and that is a fairly sizable gap as far as camera technology is concerned. Both the cameras offer the identical body type (Compact).

Before diving in to a full comparison, below is a simple summary of how the SX120 IS matches up versus the WG-3 GPS when considering portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Canon PowerShot SX120 IS and Pentax WG-3 GPS. The whole galleries are viewable at Canon SX120 IS Gallery and Pentax WG-3 GPS Gallery.

If you're looking to carry your camera, you will need to think about its weight and measurements. The Canon SX120 IS enjoys outer measurements of 111mm x 71mm x 45mm (4.4" x 2.8" x 1.8") along with a weight of 285 grams (0.63 lbs) whilst the Pentax WG-3 GPS has proportions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") along with a weight of 238 grams (0.52 lbs).

Contrast the Canon SX120 IS and Pentax WG-3 GPS in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are employing at the time. Here is the front view dimension comparison of the SX120 IS against the WG-3 GPS.

Factoring in dimensions and weight, the portability rating of the SX120 IS and WG-3 GPS is 87 and 90 respectively.

Sometimes, it is very hard to picture the contrast in sensor sizing only by viewing specs. The graphic here should give you a clearer sense of the sensor measurements in the SX120 IS and WG-3 GPS.

All in all, both of the cameras enjoy different megapixels and different sensor sizing. The SX120 IS having a smaller sensor is going to make achieving shallower DOF more challenging and the Pentax WG-3 GPS will render extra detail with its extra 6 Megapixels. Greater resolution will also help you crop photos far more aggressively. The older SX120 IS will be disadvantaged in sensor technology.