Panasonic G3 vs Sony A300

Here, we will be reviewing the Panasonic G3 and Sony A300, one is a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by rivals Panasonic and Sony. There is a big difference between the resolutions of the G3 (16MP) and A300 (10MP) and the G3 (Four Thirds) and A300 (APS-C) provide totally different sensor sizes.

Photography Glossary

The G3 was released 3 years after the A300 which is quite a big gap as far as tech is concerned. The two cameras feature different body design with the Panasonic G3 being a SLR-style mirrorless camera and the Sony A300 being a Compact SLR camera.

Before getting into a in depth comparison, here is a quick summation of how the G3 grades against the A300 in relation to portability, imaging, features and an overall mark.

Following is a preview of the gallery photos for Panasonic Lumix DMC-G3 and Sony Alpha DSLR-A300. The complete galleries are provided at Panasonic G3 Gallery and Sony A300 Gallery.

If you're looking to travel with your camera regularly, you need to factor in its weight and measurements. The Panasonic G3 offers external dimensions of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") along with a weight of 336 grams (0.74 lbs) whilst the Sony A300 has proportions of 131mm x 99mm x 75mm (5.2" x 3.9" x 3.0") having a weight of 632 grams (1.39 lbs).

Examine the Panasonic G3 and Sony A300 in the all new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will differ depending on the lens you have attached during that time. Below is a front view overall size comparison of the G3 compared to the A300.

Looking at size and weight, the portability score of the G3 and A300 is 83 and 64 respectively.

In many cases, it's tough to see the contrast between sensor dimensions merely by reading specifications. The image below may provide you a far better sense of the sensor sizes in the G3 and A300.

Plainly, each of the cameras come with different megapixel count and different sensor dimensions. The G3 because of its tinier sensor will make shooting shallow DOF more difficult and the Panasonic G3 will offer more detail as a result of its extra 6MP. Higher resolution will make it easier to crop photographs a good deal more aggressively. The younger G3 is going to have an advantage with regard to sensor innovation.