Olympus E-M5 III vs Sony A7 II

Here, we are comparing the Olympus E-M5 III vs Sony A7 II, former being a Advanced Mirrorless while the other is a Pro Mirrorless by rivals Olympus and Sony. The sensor resolution of the E-M5 III (20MP) and the A7 II (24MP) is very close but the E-M5 III (Four Thirds) and A7 II (Full frame) posses different sensor sizes.

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The E-M5 III was manufactured 4 years later than the A7 II and that is a fairly large difference as far as camera tech is concerned. The two cameras feature the same body design (SLR-style mirrorless).

Before we go into a complete comparison, here is a concise summary of how the E-M5 III scores vs the A7 II for portability, imaging, features and an overall rating.

Below is a sample of the gallery pics for Olympus OM-D E-M5 III & Sony Alpha A7 II. The entire galleries are available at Olympus E-M5 III Gallery & Sony A7 II Gallery.

For anybody who is looking to carry your camera regularly, you'll need to consider its weight and volume. The Olympus E-M5 III offers exterior dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) while the Sony A7 II has sizing of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") with a weight of 599 grams (1.32 lbs).

See the Olympus E-M5 III vs Sony A7 II in our newest Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will differ based on the lens you are working with at the time. Here is a front view measurements comparison of the E-M5 III compared to the A7 II.

Taking into consideration size and weight, the portability grade of the E-M5 III and A7 II is 80 and 69 respectively.

Generally, it is very hard to visualize the gap in sensor sizing simply by researching a spec sheet. The graphic underneath may give you a greater sense of the sensor dimensions in the E-M5 III and A7 II.

As you can see, both the cameras feature different megapixels and different sensor sizing. The E-M5 III due to its smaller sensor is going to make getting shallower DOF harder and the Sony A7 II will result in more detail due to its extra 4 Megapixels. Greater resolution will also enable you to crop images way more aggressively. The more recent E-M5 III should have a benefit when it comes to sensor tech.