Panasonic G3 vs Pentax S1

Here is a in depth analysis of the Panasonic G3 vs Pentax S1, one being a Entry-Level Mirrorless and the other is a Small Sensor Compact by manufacturers Panasonic and Pentax. The resolution of the G3 (16MP) and the S1 (14MP) is fairly close but the G3 (Four Thirds) and S1 (1/2.3") boast totally different sensor size.

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The G3 was brought out 5 months later than the S1 so they are both of a similar generation. Both of the cameras have different body design with the Panasonic G3 being a SLR-style mirrorless camera and the Pentax S1 being a Compact camera.

Before diving straight to a in-depth comparison, here is a simple summation of how the G3 scores against the S1 when considering portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Panasonic Lumix DMC-G3 and Pentax Optio S1. The entire galleries are provided at Panasonic G3 Gallery and Pentax S1 Gallery.

For anybody who is looking to carry your camera, you're going to have to consider its weight and measurements. The Panasonic G3 enjoys outer dimensions of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") and a weight of 336 grams (0.74 lbs) whilst the Pentax S1 has proportions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") and a weight of 157 grams (0.35 lbs).

Look at the Panasonic G3 vs Pentax S1 in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change depending on the lens you are using at that moment. Underneath is a front view sizing comparison of the G3 against the S1.

Taking into consideration dimensions and weight, the portability score of the G3 and S1 is 83 and 93 respectively.

Typically, it can be tough to see the contrast in sensor sizing just by looking through technical specs. The photograph below will give you a better sense of the sensor sizes in the G3 and S1.

As you can tell, each of these cameras have different megapixel count and different sensor sizing. The G3 due to its larger sensor will make achieving shallower depth of field easier and the Panasonic G3 will provide you with greater detail having its extra 2 Megapixels. Greater resolution can also help you crop photos a bit more aggressively.