Olympus E-M1 III vs Sony A37

Below is a in-depth assessment of the Olympus E-M1 III vs Sony A37, former being a Pro Mirrorless while the latter is a Entry-Level DSLR by brands Olympus and Sony. There is a large difference among the image resolutions of the E-M1 III (20MP) and A37 (16MP) and the E-M1 III (Four Thirds) and A37 (APS-C) come with totally different sensor sizing.

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The E-M1 III was revealed 7 years later than the A37 and that is a fairly serious difference as far as camera tech is concerned. Both the cameras offer different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony A37 being a Compact SLR camera.

Before going in to a complete comparison, below is a concise highlight of how the E-M1 III matches up against the A37 with regard to portability, imaging, features and an overall grade.

Below is a preview of the gallery images for Olympus OM-D E-M1 Mark III & Sony SLT-A37. The full galleries are viewable at Olympus E-M1 III Gallery & Sony A37 Gallery.

If you're going to lug around your camera often, you'll need to take into account its weight and size. The Olympus E-M1 III offers external measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) while the Sony A37 has specifications of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") accompanied by a weight of 506 grams (1.12 lbs).

Check the Olympus E-M1 III vs Sony A37 in our brand new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will differ based on the lens you have attached at the time. Following is the front view over all size comparison of the E-M1 III versus the A37.

Factoring in size and weight, the portability grade of the E-M1 III and A37 is 67 and 67 respectively.

Generally, it can be hard to envision the gap in sensor measurements simply by checking out technical specs. The visual here will help offer you a greater sense of the sensor sizing in the E-M1 III and A37.

As you have seen, both cameras enjoy different megapixel count and different sensor measurements. The E-M1 III having a smaller sensor will make shooting shallower DOF more challenging and the Olympus E-M1 III will show greater detail because of its extra 4 Megapixels. Higher resolution will also allow you to crop shots far more aggressively. The more recent E-M1 III is going to have an advantage with regard to sensor technology.