Pentax K20D vs Sony G3

Its time to look a bit more closely at the Pentax K20D versus Sony G3, one is a Advanced DSLR and the latter is a Small Sensor Compact by companies Pentax and Sony. There is a sizeable difference between the resolutions of the K20D (15MP) and G3 (10MP) and the K20D (APS-C) and G3 (1/2.3") posses totally different sensor dimensions.

Photography Glossary

The K20D was introduced 6 months before the G3 and they are of a similar generation. The two cameras feature different body design with the Pentax K20D being a Mid-size SLR camera and the Sony G3 being a Compact camera.

Before getting into a detailed comparison, here is a short synopsis of how the K20D grades against the G3 when considering portability, imaging, features and an overall mark.

Here is a preview of the gallery photos for Pentax K20D and Sony Cyber-shot DSC-G3. The whole galleries are available at Pentax K20D Gallery and Sony G3 Gallery.

If you are looking to travel with your camera regularly, you will have to take into account its weight and size. The Pentax K20D has got external measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs) and the Sony G3 has specifications of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") accompanied by a weight of 185 grams (0.41 lbs).

Take a look at the Pentax K20D versus Sony G3 in the all new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilizing at the time. Underneath is a front view dimensions comparison of the K20D and the G3.

Taking into consideration size and weight, the portability rating of the K20D and G3 is 59 and 94 respectively.

Usually, its difficult to see the gap between sensor dimensions simply by reading technical specs. The pic below will give you a far better sense of the sensor sizing in the K20D and G3.

As you have seen, each of the cameras come with different megapixels and different sensor dimensions. The K20D using its bigger sensor will make achieving shallow depth of field easier and the Pentax K20D will deliver more detail using its extra 5MP. Higher resolution will also enable you to crop pictures a good deal more aggressively.