Olympus E-P3 vs Panasonic GX850

On this page, we are analyzing the Olympus E-P3 and Panasonic GX850, both Entry-Level Mirrorless cameras by brands Olympus and Panasonic. There is a considerable difference among the sensor resolutions of the E-P3 (12MP) and GX850 (16MP) but both cameras offer the same sensor sizing (Four Thirds).

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The E-P3 was revealed 6 years earlier than the GX850 which is a fairly large difference as far as camera tech is concerned. Both of these cameras have the same body design (Rangefinder-style mirrorless).

Before we go into a detailed comparison, here is a concise summation of how the E-P3 matches up vs the GX850 in relation to portability, imaging, features and an overall score.

Here is a sample of the gallery pics for Olympus PEN E-P3 & Panasonic Lumix DMC-GX850. The full galleries are viewable at Olympus E-P3 Gallery & Panasonic GX850 Gallery.

In case you're going to carry around your camera, you will need to factor its weight and volume. The Olympus E-P3 offers physical dimensions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") along with a weight of 369 grams (0.81 lbs) while the Panasonic GX850 has sizing of 107mm x 65mm x 33mm (4.2" x 2.6" x 1.3") having a weight of 269 grams (0.59 lbs).

Check out the Olympus E-P3 and Panasonic GX850 in our completely new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change dependant on the lens you have at that time. Here is a front view proportions comparison of the E-P3 versus the GX850.

Taking into consideration size and weight, the portability score of the E-P3 and GX850 is 86 and 90 respectively.

Generally, it is very hard to see the difference in sensor sizes purely by checking out specs. The pic here should offer you a stronger sense of the sensor dimensions in the E-P3 and GX850.

All in all, the 2 cameras provide the same sensor dimensions but not the same MP. You can expect to see the Panasonic GX850 to show more detail because of its extra 4MP. Greater resolution can also make it easier to crop pics more aggressively. The more aged E-P3 will be disadvantaged with regard to sensor technology.