Olympus E-M5 III vs Panasonic GH4

Below is a in-depth overview of the Olympus E-M5 III vs Panasonic GH4, one being a Advanced Mirrorless and the other is a Pro Mirrorless by brands Olympus and Panasonic. There exists a sizeable gap among the sensor resolutions of the E-M5 III (20MP) and GH4 (16MP) but they use the exact same sensor measurements (Four Thirds).

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The E-M5 III was announced 5 years later than the GH4 and that is a fairly large gap as far as camera technology is concerned. Both cameras come with the identical body type (SLR-style mirrorless).

Before getting straight into a in depth comparison, below is a short overview of how the E-M5 III scores versus the GH4 with regard to portability, imaging, features and an overall grade.

This is a sample of the gallery pics for Olympus OM-D E-M5 III and Panasonic Lumix DMC-GH4. The whole galleries are viewable at Olympus E-M5 III Gallery and Panasonic GH4 Gallery.

For anyone who is planning to lug around your camera frequently, you will need to factor its weight and proportions. The Olympus E-M5 III has external measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") and a weight of 414 grams (0.91 lbs) and the Panasonic GH4 has measurements of 133mm x 93mm x 84mm (5.2" x 3.7" x 3.3") and a weight of 560 grams (1.23 lbs).

See the Olympus E-M5 III vs Panasonic GH4 in the all new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you have attached at the time. Underneath is the front view over all size comparison of the E-M5 III vs the GH4.

Considering dimensions and weight, the portability score of the E-M5 III and GH4 is 80 and 66 respectively.

Normally, it is very hard to visualise the gap in sensor measurements purely by checking out specs. The visual below might provide you a better sense of the sensor sizing in the E-M5 III and GH4.

As you can plainly see, both the cameras posses the exact same sensor measurements but not the same resolution. You should expect to see the Olympus E-M5 III to show extra detail with its extra 4 Megapixels. Greater resolution will also allow you to crop pics somewhat more aggressively. The younger E-M5 III is going to have an advantage with regard to sensor innovation.