Olympus E-M1 vs Sony A77 II

Let's look more closely at the Olympus E-M1 vs Sony A77 II, one is a Pro Mirrorless and the latter is a Advanced DSLR by rivals Olympus and Sony. There exists a crucial gap between the resolutions of the E-M1 (16MP) and A77 II (24MP) and the E-M1 (Four Thirds) and A77 II (APS-C) provide totally different sensor sizing.

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The E-M1 was revealed 6 months before the A77 II which means that they are of a similar generation. Both of the cameras have different body design with the Olympus E-M1 being a SLR-style mirrorless camera and the Sony A77 II being a Mid-size SLR camera.

Before getting straight to a in depth comparison, here is a brief synopsis of how the E-M1 matches up vs the A77 II when it comes to portability, imaging, features and an overall score.

Below is a preview of the gallery images for Olympus OM-D E-M1 and Sony SLT-A77 II. The full galleries are viewable at Olympus E-M1 Gallery and Sony A77 II Gallery.

If you're intending to carry around your camera regularly, you need to factor in its weight and volume. The Olympus E-M1 offers outside measurements of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") and a weight of 497 grams (1.10 lbs) while the Sony A77 II has sizing of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 647 grams (1.43 lbs).

Compare the Olympus E-M1 vs Sony A77 II in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you use at the time. The following is a front view over all size comparison of the E-M1 and the A77 II.

Taking into consideration dimensions and weight, the portability rating of the E-M1 and A77 II is 71 and 62 respectively.

Sometimes, it's tough to visualise the difference between sensor sizes simply by reading through specifications. The pic here will help provide you a greater sense of the sensor sizing in the E-M1 and A77 II.

To sum up, both cameras have different megapixels and different sensor sizes. The E-M1 with its tinier sensor will make shooting shallower depth of field trickier and the Sony A77 II will give extra detail because of its extra 8MP. Higher resolution can also enable you to crop shots a bit more aggressively.