Olympus E-M10 III vs Sony A58

In this article, we are comparing the Olympus E-M10 III vs Sony A58, former is a Entry-Level Mirrorless while the other is a Entry-Level DSLR by manufacturers Olympus and Sony. The resolution of the E-M10 III (16MP) and the A58 (20MP) is fairly close but the E-M10 III (Four Thirds) and A58 (APS-C) feature totally different sensor sizes.

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The E-M10 III was released 3 years after the A58 which is a fairly serious difference as far as camera tech is concerned. Both of these cameras offer different body type with the Olympus E-M10 III being a SLR-style mirrorless camera and the Sony A58 being a Compact SLR camera.

Before we go in to a detailed comparison, below is a brief highlight of how the E-M10 III grades versus the A58 when considering portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Olympus OM-D E-M10 Mark III & Sony SLT-A58. The complete galleries are provided at Olympus E-M10 III Gallery & Sony A58 Gallery.

In case you're aiming to carry around your camera often, you should consider its weight and volume. The Olympus E-M10 III offers outside dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") and a weight of 410 grams (0.90 lbs) and the Sony A58 has sizing of 129mm x 95mm x 78mm (5.1" x 3.7" x 3.1") accompanied by a weight of 492 grams (1.08 lbs).

Compare the Olympus E-M10 III vs Sony A58 in our completely new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will change based on the lens you use at that moment. Following is the front view overall size comparison of the E-M10 III against the A58.

Considering size and weight, the portability score of the E-M10 III and A58 is 80 and 68 respectively.

Often, its tough to envision the gap in sensor sizes only by researching technical specs. The picture underneath should give you a better sense of the sensor sizes in the E-M10 III and A58.

As you have seen, each of these cameras enjoy different resolutions and different sensor sizes. The E-M10 III because of its smaller sensor will make getting shallower depth of field trickier and the Sony A58 will provide you with more detail as a result of its extra 4 Megapixels. Greater resolution will also enable you to crop images far more aggressively. The fresher E-M10 III is going to have an edge when it comes to sensor innovation.