Olympus E-M5 III vs Sony A7c

Here is a complete analysis of the Olympus E-M5 III vs Sony A7c, both Advanced Mirrorless cameras by competitors Olympus and Sony. The sensor resolution of the E-M5 III (20MP) and the A7c (24MP) is pretty close but the E-M5 III (Four Thirds) and A7c (Full frame) posses different sensor sizing.

Photography Glossary

The E-M5 III was introduced 11 months earlier than the A7c and they are both of a similar generation. Each of the cameras feature different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Sony A7c being a Rangefinder-style mirrorless camera.

Before delving right into a comprehensive comparison, here is a short highlight of how the E-M5 III matches up vs the A7c in the way of portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Olympus OM-D E-M5 III and Sony Alpha A7c. The whole galleries are provided at Olympus E-M5 III Gallery and Sony A7c Gallery.

For anybody who is aiming to carry your camera regularly, you have to think about its weight and dimensions. The Olympus E-M5 III has external measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs) and the Sony A7c has dimensions of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") along with a weight of 509 grams (1.12 lbs).

See the Olympus E-M5 III vs Sony A7c in the all new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilizing at the time. Here is a front view size comparison of the E-M5 III compared to the A7c.

Taking into consideration size and weight, the portability grade of the E-M5 III and A7c is 80 and 78 respectively.

Usually, its hard to imagine the difference in sensor sizing merely by researching specifications. The graphic here should give you a far better sense of the sensor sizing in the E-M5 III and A7c.

To sum up, the 2 cameras come with different resolutions and different sensor sizing. The E-M5 III with its smaller sensor is going to make achieving shallow depth of field more difficult and the Sony A7c will provide you with extra detail using its extra 4MP. Higher resolution will help you crop shots a good deal more aggressively. The older E-M5 III will be disadvantaged when it comes to sensor innovation.