Olympus E-PM1 vs Sony A9 II

On this page, we will be matching up the Olympus E-PM1 vs Sony A9 II, former is a Entry-Level Mirrorless while the latter is a Pro Mirrorless by brands Olympus and Sony. There is a substantial difference between the resolutions of the E-PM1 (12MP) and A9 II (24MP) and the E-PM1 (Four Thirds) and A9 II (Full frame) boast totally different sensor sizing.

Pentax 17 Pre-Orders Outperform Expectations by a Landslide

The E-PM1 was launched 8 years before the A9 II which is quite a big difference as far as tech is concerned. Both cameras have different body design with the Olympus E-PM1 being a Rangefinder-style mirrorless camera and the Sony A9 II being a SLR-style mirrorless camera.

Before we go right into a step-by-step comparison, here is a concise summation of how the E-PM1 grades versus the A9 II with regard to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Olympus PEN E-PM1 & Sony Alpha A9 Mark II. The complete galleries are available at Olympus E-PM1 Gallery & Sony A9 II Gallery.

For anyone who is looking to carry around your camera often, you have to think about its weight and dimensions. The Olympus E-PM1 enjoys external dimensions of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") accompanied by a weight of 265 grams (0.58 lbs) and the Sony A9 II has dimensions of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") having a weight of 678 grams (1.49 lbs).

Compare the Olympus E-PM1 vs Sony A9 II in our newest Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ depending on the lens you use at the time. Underneath is a front view physical size comparison of the E-PM1 vs the A9 II.

Factoring in size and weight, the portability grade of the E-PM1 and A9 II is 89 and 62 respectively.

Generally, it's difficult to envision the difference between sensor sizes just by checking technical specs. The picture here may offer you a far better sense of the sensor dimensions in the E-PM1 and A9 II.

As you have seen, each of these cameras have different megapixels and different sensor sizes. The E-PM1 featuring a tinier sensor will make achieving shallow DOF tougher and the Sony A9 II will give more detail utilizing its extra 12 Megapixels. Higher resolution will also allow you to crop pictures a bit more aggressively. The more aged E-PM1 is going to be behind when it comes to sensor technology.