Pentax WG-3 GPS vs Sony A77

Its time to look closer at the Pentax WG-3 GPS versus Sony A77, one being a Waterproof and the latter is a Advanced DSLR by manufacturers Pentax and Sony. There is a significant difference among the sensor resolutions of the WG-3 GPS (16MP) and A77 (24MP) and the WG-3 GPS (1/2.3") and A77 (APS-C) have different sensor sizes.

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The WG-3 GPS was released 22 months later than the A77 which makes them a generation apart from each other. Each of the cameras have different body design with the Pentax WG-3 GPS being a Compact camera and the Sony A77 being a Mid-size SLR camera.

Before diving straight to a detailed comparison, here is a quick synopsis of how the WG-3 GPS scores vs the A77 when it comes to portability, imaging, features and an overall grade.

Following is a preview of the gallery photos for Pentax WG-3 GPS and Sony SLT-A77. The complete galleries are available at Pentax WG-3 GPS Gallery and Sony A77 Gallery.

For anybody who is going to lug around your camera, you should think about its weight and dimensions. The Pentax WG-3 GPS enjoys outer dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") and a weight of 238 grams (0.52 lbs) whilst the Sony A77 has dimensions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") having a weight of 732 grams (1.61 lbs).

Contrast the Pentax WG-3 GPS versus Sony A77 in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change depending on the lens you are working with at the time. Here is a front view dimensions comparison of the WG-3 GPS versus the A77.

Using size and weight, the portability score of the WG-3 GPS and A77 is 90 and 59 respectively.

Generally, it can be tough to picture the difference in sensor measurements just by looking through a spec sheet. The visual here will help provide you a stronger sense of the sensor sizes in the WG-3 GPS and A77.

Clearly, both of the cameras provide different resolutions and different sensor measurements. The WG-3 GPS due to its smaller sensor is going to make achieving shallow DOF more challenging and the Sony A77 will render extra detail as a result of its extra 8MP. Higher resolution can also make it easier to crop shots more aggressively. The younger WG-3 GPS provides a benefit when it comes to sensor tech.