Olympus E-M1 III vs Olympus E-P7

Lets look more in depth at the Olympus E-M1 III versus Olympus E-P7, former being a Pro Mirrorless while the other is a Entry-Level Mirrorless and both of them are offered by Olympus. The image resolution of the E-M1 III (20MP) and the E-P7 (20MP) is very close and both cameras provide the same sensor dimensions (Four Thirds).

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The E-M1 III was unveiled 16 months before the E-P7 making them a generation apart from each other. The two cameras have different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Olympus E-P7 being a Rangefinder-style mirrorless camera.

Before we go straight to a in-depth comparison, here is a quick synopsis of how the E-M1 III matches up vs the E-P7 in relation to portability, imaging, features and an overall rating.

This is a sample of the gallery pics for Olympus OM-D E-M1 Mark III & Olympus PEN E-P7. The full galleries are available at Olympus E-M1 III Gallery & Olympus E-P7 Gallery.

If you're intending to carry your camera regularly, you'll need to consider its weight and dimensions. The Olympus E-M1 III enjoys outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") with a weight of 580 grams (1.28 lbs) while the Olympus E-P7 has dimensions of 118mm x 69mm x 38mm (4.6" x 2.7" x 1.5") and a weight of 337 grams (0.74 lbs).

Look at the Olympus E-M1 III versus Olympus E-P7 in our brand new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change depending on the lens you are employing during that time. Underneath is a front view overall size comparison of the E-M1 III against the E-P7.

Using size and weight, the portability rating of the E-M1 III and E-P7 is 67 and 86 respectively.

Usually, it can be hard to visualise the contrast in sensor sizing just by researching a spec sheet. The photograph below will help give you a better sense of the sensor dimensions in the E-M1 III and E-P7.

As you can see, both of these cameras provide the same sensor dimensions and the exact same resolution so you can expect comparable quality of pictures although you would want to factor the age of the cameras into account. The older E-M1 III will be disadvantaged in sensor innovation.