Olympus E-P3 vs Panasonic G1

The following is a thorough analysis of the Olympus E-P3 vs Panasonic G1, both Entry-Level Mirrorless cameras by brands Olympus and Panasonic. The image resolution of the E-P3 (12MP) and the G1 (12MP) is fairly comparable and they use the same exact sensor size (Four Thirds).

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The E-P3 was announced 2 years after the G1 which is a fairly significant gap as far as camera tech is concerned. The two cameras offer different body type with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Panasonic G1 being a SLR-style mirrorless camera.

Before we go straight into a more detailed comparison, below is a concise introduction of how the E-P3 grades vs the G1 in relation to portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Olympus PEN E-P3 and Panasonic Lumix DMC-G1. The whole galleries are available at Olympus E-P3 Gallery and Panasonic G1 Gallery.

If you are aiming to travel with your camera frequently, you need to factor its weight and measurements. The Olympus E-P3 has physical measurements of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") accompanied by a weight of 369 grams (0.81 lbs) whilst the Panasonic G1 has proportions of 124mm x 84mm x 45mm (4.9" x 3.3" x 1.8") and a weight of 360 grams (0.79 lbs).

Compare the Olympus E-P3 vs Panasonic G1 in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you select during that time. Here is the front view sizing comparison of the E-P3 and the G1.

Factoring in size and weight, the portability grade of the E-P3 and G1 is 86 and 82 respectively.

In many cases, it is very tough to envision the gap in sensor dimensions only by seeing technical specs. The picture here may give you a more clear sense of the sensor measurements in the E-P3 and G1.

As you can tell, each of these cameras enjoy the same exact sensor sizing and the same exact resolution and you should expect comparable quality of files but you should really consider the release date of the cameras into account. The more modern E-P3 is going to have an advantage in sensor tech.