Olympus E-M10 II vs Sony A7S

Here, we will be evaluating the Olympus E-M10 II vs Sony A7S, former is a Entry-Level Mirrorless while the latter is a Pro Mirrorless by manufacturers Olympus and Sony. There is a noticeable difference between the image resolutions of the E-M10 II (16MP) and A7S (12MP) and the E-M10 II (Four Thirds) and A7S (Full frame) boast different sensor dimensions.

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The E-M10 II was released 17 months after the A7S which makes them a generation away from each other. Both of these cameras feature the same body design (SLR-style mirrorless).

Before going straight to a in depth comparison, here is a simple overview of how the E-M10 II grades against the A7S with regards to portability, imaging, features and an overall score.

This is a preview of the gallery photos for Olympus OM-D E-M10 II & Sony Alpha A7S. The complete galleries are viewable at Olympus E-M10 II Gallery & Sony A7S Gallery.

If you are aiming to carry around your camera regularly, you will have to factor in its weight and dimensions. The Olympus E-M10 II features outside measurements of 120mm x 83mm x 47mm (4.7" x 3.3" x 1.9") with a weight of 390 grams (0.86 lbs) whilst the Sony A7S has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") and a weight of 489 grams (1.08 lbs).

Look at the Olympus E-M10 II vs Sony A7S in our newest Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ dependant on the lens you are employing during that time. Following is a front view measurements comparison of the E-M10 II against the A7S.

Using size and weight, the portability rating of the E-M10 II and A7S is 82 and 77 respectively.

Often, it's hard to imagine the difference between sensor sizes just by looking at technical specs. The pic here will offer you a much better sense of the sensor sizing in the E-M10 II and A7S.

As you have seen, the two cameras feature different megapixels and different sensor sizes. The E-M10 II featuring a tinier sensor is going to make achieving shallow DOF tougher and the Olympus E-M10 II will give greater detail as a result of its extra 4MP. Higher resolution will also make it easier to crop photographs way more aggressively. The younger E-M10 II provides an edge in sensor innovation.