Olympus E-M1X vs Sony A7S

Below is a complete overview of the Olympus E-M1X versus Sony A7S, both Pro Mirrorless digital cameras by rivals Olympus and Sony. There exists a substantial gap between the resolutions of the E-M1X (20MP) and A7S (12MP) and the E-M1X (Four Thirds) and A7S (Full frame) possess different sensor size.

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The E-M1X was manufactured 4 years later than the A7S and that is quite a big difference as far as technology is concerned. Both the cameras come with the identical body type (SLR-style mirrorless).

Before diving through a full comparison, below is a short summation of how the E-M1X grades vs the A7S for portability, imaging, features and an overall grade.

This is a sample of the gallery pictures for Olympus OM-D E-M1X & Sony Alpha A7S. The entire galleries are viewable at Olympus E-M1X Gallery & Sony A7S Gallery.

In case you're planning to lug around your camera frequently, you need to consider its weight and size. The Olympus E-M1X has external dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") along with a weight of 997 grams (2.20 lbs) whilst the Sony A7S has specifications of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 489 grams (1.08 lbs).

Check out the Olympus E-M1X versus Sony A7S in our brand new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will change based on the lens you are working with at that moment. Below is the front view physical size comparison of the E-M1X against the A7S.

Taking into account dimensions and weight, the portability rating of the E-M1X and A7S is 54 and 77 respectively.

Normally, it is very hard to picture the gap between sensor measurements simply by looking at technical specs. The photograph underneath will help offer you a greater sense of the sensor sizes in the E-M1X and A7S.

As you can tell, both cameras have got different resolutions and different sensor measurements. The E-M1X due to its tinier sensor is going to make getting shallower depth of field trickier and the Olympus E-M1X will give extra detail due to its extra 8MP. Greater resolution will let you crop images much more aggressively. The more recent E-M1X should have an advantage when it comes to sensor technology.