Panasonic G1 vs Pentax W90

Below is a extended comparison of the Panasonic G1 vs Pentax W90, one being a Entry-Level Mirrorless and the other is a Waterproof by rivals Panasonic and Pentax. The image resolution of the G1 (12MP) and the W90 (12MP) is fairly well matched but the G1 (Four Thirds) and W90 (1/2.3") boast totally different sensor dimensions.

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The G1 was announced 13 months prior to the W90 making them a generation apart from one another. Both of the cameras have different body design with the Panasonic G1 being a SLR-style mirrorless camera and the Pentax W90 being a Compact camera.

Before we go right into a comprehensive comparison, here is a brief synopsis of how the G1 grades versus the W90 in terms of portability, imaging, features and an overall grade.

Here is a sample of the gallery pictures for Panasonic Lumix DMC-G1 and Pentax Optio W90. The whole galleries are viewable at Panasonic G1 Gallery and Pentax W90 Gallery.

If you're looking to lug around your camera, you should factor in its weight and dimensions. The Panasonic G1 features outer measurements of 124mm x 84mm x 45mm (4.9" x 3.3" x 1.8") having a weight of 360 grams (0.79 lbs) while the Pentax W90 has dimensions of 108mm x 59mm x 25mm (4.3" x 2.3" x 1.0") accompanied by a weight of 164 grams (0.36 lbs).

See the Panasonic G1 vs Pentax W90 in the all new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached during that time. Following is a front view proportions comparison of the G1 versus the W90.

Taking into consideration dimensions and weight, the portability grade of the G1 and W90 is 82 and 94 respectively.

Normally, it can be hard to visualise the difference between sensor measurements only by reading through a spec sheet. The visual below will give you a stronger sense of the sensor sizing in the G1 and W90.

Clearly, both of these cameras provide the same megapixel count but not the same sensor measurements. The G1 comes with the larger sensor which is going to make getting shallow depth of field simpler. The older G1 is going to be behind in sensor tech.