Olympus E-M1 II vs Sony A7R

Below is a complete assessment of the Olympus E-M1 II vs Sony A7R, both Pro Mirrorless digital cameras by companies Olympus and Sony. There is a substantial difference between the sensor resolutions of the E-M1 II (20MP) and A7R (36MP) and the E-M1 II (Four Thirds) and A7R (Full frame) provide different sensor size.

Photography Glossary

The E-M1 II was brought out 2 years later than the A7R and that is quite a big difference as far as tech is concerned. Both of these cameras feature the same body design (SLR-style mirrorless).

Before getting into a thorough comparison, here is a simple overview of how the E-M1 II scores against the A7R in relation to portability, imaging, features and an overall grade.

Following is a preview of the gallery photos for Olympus OM-D E-M1 Mark II & Sony Alpha A7R. The entire galleries are viewable at Olympus E-M1 II Gallery & Sony A7R Gallery.

If you are looking to lug around your camera often, you need to consider its weight and measurements. The Olympus E-M1 II provides physical dimensions of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") along with a weight of 574 grams (1.27 lbs) while the Sony A7R has proportions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") with a weight of 465 grams (1.03 lbs).

Check the Olympus E-M1 II vs Sony A7R in our newest Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change based on the lens you have chosen at that time. The following is a front view measurement comparison of the E-M1 II and the A7R.

Taking into consideration size and weight, the portability grade of the E-M1 II and A7R is 68 and 78 respectively.

Generally, it can be difficult to picture the gap between sensor measurements only by reviewing specs. The photograph below should provide you a much better sense of the sensor sizes in the E-M1 II and A7R.

As you can plainly see, the two cameras come with different megapixels and different sensor measurements. The E-M1 II due to its tinier sensor is going to make getting shallower depth of field harder and the Sony A7R will offer more detail having its extra 16MP. Higher resolution will also let you crop pictures a good deal more aggressively. The more recent E-M1 II should have a benefit when it comes to sensor technology.