Olympus E-M1 III vs Sony A550

Following is a in depth analysis of the Olympus E-M1 III vs Sony A550, former is a Pro Mirrorless while the other is a Entry-Level DSLR by competitors Olympus and Sony. There is a large difference among the image resolutions of the E-M1 III (20MP) and A550 (14MP) and the E-M1 III (Four Thirds) and A550 (APS-C) have totally different sensor size.

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The E-M1 III was released 10 years after the A550 which is a fairly serious difference as far as camera tech is concerned. Both cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony A550 being a Compact SLR camera.

Before getting straight to a complete comparison, here is a brief summary of how the E-M1 III scores versus the A550 when considering portability, imaging, features and an overall score.

The following is a sample of the gallery pics for Olympus OM-D E-M1 Mark III & Sony Alpha DSLR-A550. The complete galleries are viewable at Olympus E-M1 III Gallery & Sony A550 Gallery.

When you are going to carry around your camera, you have to take into account its weight and size. The Olympus E-M1 III features external measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) and the Sony A550 has specifications of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") with a weight of 632 grams (1.39 lbs).

Contrast the Olympus E-M1 III vs Sony A550 in our newest Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ depending on the lens you have attached at that moment. Underneath is a front view measurement comparison of the E-M1 III and the A550.

Looking at size and weight, the portability score of the E-M1 III and A550 is 67 and 63 respectively.

Oftentimes, its difficult to envision the gap in sensor sizes purely by viewing specifications. The image here will offer you a stronger sense of the sensor measurements in the E-M1 III and A550.

Plainly, the 2 cameras feature different megapixels and different sensor sizes. The E-M1 III featuring a smaller sensor will make getting shallower depth of field more difficult and the Olympus E-M1 III will render extra detail as a result of its extra 6MP. Greater resolution will let you crop photos way more aggressively. The more recent E-M1 III will have an edge with regard to sensor innovation.