Olympus E-M10 III vs Sony A55

Its time to look a bit more closely at the Olympus E-M10 III vs Sony A55, one being a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by brands Olympus and Sony. The resolution of the E-M10 III (16MP) and the A55 (16MP) is relatively well matched but the E-M10 III (Four Thirds) and A55 (APS-C) use totally different sensor size.

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The E-M10 III was revealed 7 years later than the A55 and that is quite a significant gap as far as tech is concerned. Each of the cameras come with different body type with the Olympus E-M10 III being a SLR-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before going in to a more detailed comparison, below is a quick synopsis of how the E-M10 III grades versus the A55 in relation to portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Olympus OM-D E-M10 Mark III and Sony SLT-A55. The full galleries are provided at Olympus E-M10 III Gallery and Sony A55 Gallery.

When you are intending to carry your camera regularly, you're going to have to take into account its weight and proportions. The Olympus E-M10 III offers physical measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") accompanied by a weight of 410 grams (0.90 lbs) and the Sony A55 has measurements of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Take a look at the Olympus E-M10 III vs Sony A55 in the new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are employing at that time. Here is the front view dimension comparison of the E-M10 III and the A55.

Considering size and weight, the portability grade of the E-M10 III and A55 is 80 and 67 respectively.

Often, it can be hard to envision the difference between sensor sizing just by looking at specifications. The graphic below might offer you a stronger sense of the sensor sizing in the E-M10 III and A55.

To sum up, both of these cameras have got the exact same MP albeit not the same sensor sizing. The E-M10 III provides the tinier sensor which is going to make getting shallow DOF harder. The more recent E-M10 III is going to have an advantage in sensor innovation.