Olympus E-M1 II vs Sony A900

In this write-up, we are looking at the Olympus E-M1 II and Sony A900, former is a Pro Mirrorless while the other is a Advanced DSLR by manufacturers Olympus and Sony. The resolution of the E-M1 II (20MP) and the A900 (25MP) is fairly similar but the E-M1 II (Four Thirds) and A900 (Full frame) enjoy different sensor size.

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The E-M1 II was introduced 8 years after the A900 which is quite a large difference as far as technology is concerned. Each of the cameras offer different body type with the Olympus E-M1 II being a SLR-style mirrorless camera and the Sony A900 being a Mid-size SLR camera.

Before diving straight into a complete comparison, below is a simple introduction of how the E-M1 II matches up against the A900 in regards to portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Olympus OM-D E-M1 Mark II & Sony Alpha DSLR-A900. The whole galleries are available at Olympus E-M1 II Gallery & Sony A900 Gallery.

For those who are going to carry around your camera frequently, you will want to factor its weight and measurements. The Olympus E-M1 II enjoys outer dimensions of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") accompanied by a weight of 574 grams (1.27 lbs) whilst the Sony A900 has proportions of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Take a look at the Olympus E-M1 II and Sony A900 in our newest Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will change depending on the lens you are using during that time. Below is the front view proportions comparison of the E-M1 II compared to the A900.

Using dimensions and weight, the portability score of the E-M1 II and A900 is 68 and 54 respectively.

Sometimes, it's tough to picture the contrast between sensor sizes only by going over specifications. The pic underneath may offer you a much better sense of the sensor sizes in the E-M1 II and A900.

Plainly, both of these cameras offer different megapixel count and different sensor sizes. The E-M1 II using its tinier sensor is going to make getting shallow depth of field harder and the Sony A900 will offer extra detail using its extra 5 Megapixels. Greater resolution will also help you crop pics a little more aggressively. The fresher E-M1 II provides an advantage when it comes to sensor tech.