Olympus E-M1X vs Sony FX3

The following is a thorough comparison of the Olympus E-M1X and Sony FX3, both Pro Mirrorless cameras by brands Olympus and Sony. There is a significant difference among the sensor resolutions of the E-M1X (20MP) and FX3 (12MP) and the E-M1X (Four Thirds) and FX3 (Full frame) have totally different sensor dimensions.

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The E-M1X was launched 3 years before the FX3 which is a fairly sizable gap as far as camera tech is concerned. Each of these cameras have different body design with the Olympus E-M1X being a SLR-style mirrorless camera and the Sony FX3 being a Rangefinder-style mirrorless camera.

Before going right into a detailed comparison, here is a quick summation of how the E-M1X scores against the FX3 when considering portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Olympus OM-D E-M1X and Sony FX3. The complete galleries are provided at Olympus E-M1X Gallery and Sony FX3 Gallery.

When you are going to travel with your camera, you're going to have to factor its weight and proportions. The Olympus E-M1X offers external dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") and a weight of 997 grams (2.20 lbs) and the Sony FX3 has measurements of 130mm x 78mm x 85mm (5.1" x 3.1" x 3.3") having a weight of 716 grams (1.58 lbs).

Contrast the Olympus E-M1X and Sony FX3 in the new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you select at that moment. Underneath is a front view measurement comparison of the E-M1X compared to the FX3.

Taking into account size and weight, the portability score of the E-M1X and FX3 is 54 and 62 respectively.

In many cases, it is difficult to envision the gap in sensor dimensions purely by checking out technical specs. The image below should provide you a more clear sense of the sensor sizes in the E-M1X and FX3.

As you can tell, both of those cameras have different megapixels and different sensor dimensions. The E-M1X due to its smaller sensor will make shooting shallower DOF more challenging and the Olympus E-M1X will produce more detail utilizing its extra 8 Megapixels. Higher resolution will also allow you to crop photographs a bit more aggressively. The more aged E-M1X will be behind when it comes to sensor technology.