Olympus E-M1 III vs Olympus E-P3

Here is a in-depth overview of the Olympus E-M1 III vs Olympus E-P3, former being a Pro Mirrorless while the latter is a Entry-Level Mirrorless and both are manufactured by Olympus. There is a large difference among the resolutions of the E-M1 III (20MP) and E-P3 (12MP) but they use the exact same sensor size (Four Thirds).

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The E-M1 III was revealed 8 years later than the E-P3 and that is a fairly serious difference as far as camera tech is concerned. Both cameras come with different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Olympus E-P3 being a Rangefinder-style mirrorless camera.

Before getting in to a full comparison, below is a concise overview of how the E-M1 III scores against the E-P3 with respect to portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Olympus OM-D E-M1 Mark III & Olympus PEN E-P3. The full galleries are available at Olympus E-M1 III Gallery & Olympus E-P3 Gallery.

For anyone who is looking to carry your camera, you have to factor its weight and measurements. The Olympus E-M1 III provides outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) whilst the Olympus E-P3 has proportions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") accompanied by a weight of 369 grams (0.81 lbs).

See the Olympus E-M1 III vs Olympus E-P3 in our brand new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary based on the lens you are utilizing during that time. The following is the front view size comparison of the E-M1 III against the E-P3.

Looking at size and weight, the portability grade of the E-M1 III and E-P3 is 67 and 86 respectively.

Usually, it is very hard to visualise the difference in sensor sizing purely by viewing specifications. The graphic here will offer you a more clear sense of the sensor sizes in the E-M1 III and E-P3.

Plainly, the 2 cameras posses the exact same sensor measurements albeit not the same resolution. You can count on the Olympus E-M1 III to provide you with more detail because of its extra 8 Megapixels. Higher resolution will also make it easier to crop photographs somewhat more aggressively. The fresher E-M1 III is going to have an edge in sensor innovation.