Olympus E-M1 III vs Panasonic GH4

Following is a extensive review of the Olympus E-M1 III versus Panasonic GH4, both Pro Mirrorless cameras by rivals Olympus and Panasonic. There exists a huge gap among the sensor resolutions of the E-M1 III (20MP) and GH4 (16MP) but both cameras offer the same sensor size (Four Thirds).

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The E-M1 III was introduced 6 years after the GH4 which is a fairly significant gap as far as camera technology is concerned. Each of these cameras have the same body design (SLR-style mirrorless).

Before going straight to a comprehensive comparison, here is a concise summation of how the E-M1 III grades versus the GH4 with respect to portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Olympus OM-D E-M1 Mark III and Panasonic Lumix DMC-GH4. The whole galleries are available at Olympus E-M1 III Gallery and Panasonic GH4 Gallery.

For anyone who is planning to carry around your camera, you should take into account its weight and size. The Olympus E-M1 III has got exterior measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) while the Panasonic GH4 has specifications of 133mm x 93mm x 84mm (5.2" x 3.7" x 3.3") with a weight of 560 grams (1.23 lbs).

Analyze the Olympus E-M1 III versus Panasonic GH4 in the latest Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have at that time. Below is a front view dimension comparison of the E-M1 III and the GH4.

Taking into consideration dimensions and weight, the portability score of the E-M1 III and GH4 is 67 and 66 respectively.

Typically, it can be tough to imagine the difference in sensor sizes only by looking through specifications. The picture here will offer you a more clear sense of the sensor sizing in the E-M1 III and GH4.

Plainly, both of these cameras have the same sensor dimensions but different MP. You should expect to see the Olympus E-M1 III to render extra detail using its extra 4 Megapixels. Greater resolution will help you crop images a bit more aggressively. The more recent E-M1 III should have a benefit in sensor technology.