Olympus E-M1X vs Sony A77

Below is a complete overview of the Olympus E-M1X vs Sony A77, one being a Pro Mirrorless and the other is a Advanced DSLR by companies Olympus and Sony. The image resolution of the E-M1X (20MP) and the A77 (24MP) is very similar but the E-M1X (Four Thirds) and A77 (APS-C) posses different sensor measurements.

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The E-M1X was unveiled 7 years later than the A77 and that is quite a large gap as far as tech is concerned. The two cameras feature different body design with the Olympus E-M1X being a SLR-style mirrorless camera and the Sony A77 being a Mid-size SLR camera.

Before diving into a comprehensive comparison, here is a brief summary of how the E-M1X scores versus the A77 when considering portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Olympus OM-D E-M1X and Sony SLT-A77. The full galleries are available at Olympus E-M1X Gallery and Sony A77 Gallery.

For those who are going to lug around your camera often, you have to think about its weight and size. The Olympus E-M1X has exterior measurements of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") with a weight of 997 grams (2.20 lbs) whilst the Sony A77 has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") having a weight of 732 grams (1.61 lbs).

Take a look at the Olympus E-M1X vs Sony A77 in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you have attached at the time. Below is a front view measurements comparison of the E-M1X and the A77.

Using size and weight, the portability grade of the E-M1X and A77 is 54 and 59 respectively.

Often, it can be hard to imagine the gap between sensor measurements simply by reading a spec sheet. The photograph below should provide you a greater sense of the sensor sizing in the E-M1X and A77.

Clearly, the 2 cameras feature different megapixel count and different sensor measurements. The E-M1X having a tinier sensor is going to make getting shallower depth of field harder and the Sony A77 will offer more detail having an extra 4MP. Greater resolution can also let you crop photos way more aggressively. The more recent E-M1X should have an edge when it comes to sensor innovation.