Olympus E-M1 III vs Sony A68

Here, we are looking at the Olympus E-M1 III and Sony A68, former being a Pro Mirrorless while the other is a Entry-Level DSLR by manufacturers Olympus and Sony. The image resolution of the E-M1 III (20MP) and the A68 (24MP) is very comparable but the E-M1 III (Four Thirds) and A68 (APS-C) provide totally different sensor size.

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The E-M1 III was manufactured 4 years later than the A68 and that is a fairly large difference as far as camera tech is concerned. Both of the cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony A68 being a Compact SLR camera.

Before delving into a in depth comparison, here is a simple view of how the E-M1 III matches up vs the A68 in terms of portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Olympus OM-D E-M1 Mark III & Sony SLT-A68. The entire galleries are available at Olympus E-M1 III Gallery & Sony A68 Gallery.

In case you're planning to carry your camera often, you have to take into account its weight and size. The Olympus E-M1 III features outside measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) while the Sony A68 has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 610 grams (1.34 lbs).

Examine the Olympus E-M1 III and Sony A68 in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary dependant on the lens you are using at that time. Following is a front view measurement comparison of the E-M1 III against the A68.

Using size and weight, the portability grade of the E-M1 III and A68 is 67 and 64 respectively.

In many cases, it is hard to visualise the gap in sensor sizing merely by checking out technical specs. The graphic here may provide you a better sense of the sensor sizing in the E-M1 III and A68.

As you have seen, each of the cameras feature different megapixels and different sensor sizing. The E-M1 III featuring a smaller sensor will make getting shallower depth of field more difficult and the Sony A68 will provide greater detail due to its extra 4 Megapixels. Greater resolution can also let you crop pics way more aggressively. The fresher E-M1 III will have an edge with regard to sensor innovation.