Pentax K-S1 vs Sony G3

Let's take a deeper look at the Pentax K-S1 versus Sony G3, one being a Advanced DSLR and the latter is a Small Sensor Compact by brands Pentax and Sony. There exists a crucial gap between the image resolutions of the K-S1 (20MP) and G3 (10MP) and the K-S1 (APS-C) and G3 (1/2.3") posses totally different sensor measurements.

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The K-S1 was launched 5 years later than the G3 and that is quite a serious gap as far as technology is concerned. Both of the cameras have different body design with the Pentax K-S1 being a Mid-size SLR camera and the Sony G3 being a Compact camera.

Before we go into a in depth comparison, here is a simple overview of how the K-S1 scores vs the G3 in terms of portability, imaging, features and an overall grade.

This is a preview of the gallery images for Pentax K-S1 and Sony Cyber-shot DSC-G3. The complete galleries are viewable at Pentax K-S1 Gallery and Sony G3 Gallery.

For anyone who is going to lug around your camera often, you will need to factor in its weight and proportions. The Pentax K-S1 has exterior measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs) and the Sony G3 has measurements of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") and a weight of 185 grams (0.41 lbs).

Contrast the Pentax K-S1 versus Sony G3 in the latest Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you have at that time. Here is a front view measurement comparison of the K-S1 versus the G3.

Factoring in dimensions and weight, the portability grade of the K-S1 and G3 is 69 and 94 respectively.

Normally, it can be tough to visualise the difference between sensor measurements purely by checking a spec sheet. The graphic here should give you a clearer sense of the sensor sizing in the K-S1 and G3.

Clearly, each of these cameras have different resolutions and different sensor measurements. The K-S1 due to its bigger sensor will make achieving bokeh easier and the Pentax K-S1 will resolve more detail utilizing its extra 10 Megapixels. Higher resolution will enable you to crop shots a bit more aggressively. The more recent K-S1 is going to have a benefit with regard to sensor technology.