Olympus E-M5 III vs Sony A850

Lets take a more detailed look at the Olympus E-M5 III vs Sony A850, former being a Advanced Mirrorless while the latter is a Advanced DSLR by brands Olympus and Sony. The resolution of the E-M5 III (20MP) and the A850 (25MP) is relatively well matched but the E-M5 III (Four Thirds) and A850 (Full frame) have different sensor size.

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The E-M5 III was revealed 9 years later than the A850 and that is quite a large difference as far as technology is concerned. The two cameras have different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Sony A850 being a Mid-size SLR camera.

Before diving into a full comparison, here is a brief summary of how the E-M5 III scores against the A850 with regard to portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Olympus OM-D E-M5 III & Sony Alpha DSLR-A850. The full galleries are viewable at Olympus E-M5 III Gallery & Sony A850 Gallery.

For anyone who is going to lug around your camera regularly, you need to factor its weight and volume. The Olympus E-M5 III features outside 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) whilst the Sony A850 has sizing of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") accompanied by a weight of 895 grams (1.97 lbs).

Look at the Olympus E-M5 III vs Sony A850 in our newest Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will vary depending on the lens you have chosen at that moment. Below is a front view overall size comparison of the E-M5 III and the A850.

Looking at dimensions and weight, the portability rating of the E-M5 III and A850 is 80 and 54 respectively.

More often than not, it is hard to picture the gap between sensor measurements just by reading through technical specs. The graphic underneath should offer you a stronger sense of the sensor sizes in the E-M5 III and A850.

As you have seen, each of these cameras provide different megapixel count and different sensor measurements. The E-M5 III using its tinier sensor is going to make getting bokeh more difficult and the Sony A850 will give you extra detail because of its extra 5MP. Higher resolution can also let you crop shots more aggressively. The fresher E-M5 III provides an edge when it comes to sensor innovation.