Olympus E-P3 vs Panasonic G9

On this page, we are evaluating the Olympus E-P3 vs Panasonic G9, one is a Entry-Level Mirrorless and the other is a Pro Mirrorless by brands Olympus and Panasonic. There is a significant difference between the resolutions of the E-P3 (12MP) and G9 (20MP) but both cameras provide the same sensor sizes (Four Thirds).

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The E-P3 was announced 7 years before the G9 which is quite a sizable gap as far as tech is concerned. Each of the cameras have different body design with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Panasonic G9 being a SLR-style mirrorless camera.

Before diving into a more detailed comparison, here is a brief highlight of how the E-P3 scores vs the G9 with respect to portability, imaging, features and an overall mark.

The following is a sample of the gallery pics for Olympus PEN E-P3 and Panasonic Lumix DC-G9. The whole galleries are viewable at Olympus E-P3 Gallery and Panasonic G9 Gallery.

If you are looking to travel with your camera regularly, you will need to factor in its weight and measurements. The Olympus E-P3 has got external measurements of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") along with a weight of 369 grams (0.81 lbs) whilst the Panasonic G9 has proportions of 137mm x 97mm x 92mm (5.4" x 3.8" x 3.6") having a weight of 658 grams (1.45 lbs).

Analyze the Olympus E-P3 vs Panasonic G9 in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have chosen at that time. Here is a front view sizing comparison of the E-P3 vs the G9.

Taking into account size and weight, the portability grade of the E-P3 and G9 is 86 and 62 respectively.

Often, it's hard to picture the gap between sensor dimensions merely by going over specs. The picture underneath will give you a clearer sense of the sensor measurements in the E-P3 and G9.

As you can plainly see, both cameras provide the same sensor dimensions but different resolution. You should expect to see the Panasonic G9 to offer you extra detail with its extra 8 Megapixels. Greater resolution can also make it easier to crop photos more aggressively. The more aged E-P3 is going to be disadvantaged in sensor innovation.