Olympus E-M1 III vs Sony A65

Its time to take a more detailed look at the Olympus E-M1 III and Sony A65, one is a Pro Mirrorless and the latter is a Entry-Level DSLR by rivals Olympus and Sony. The sensor resolution of the E-M1 III (20MP) and the A65 (24MP) is pretty similar but the E-M1 III (Four Thirds) and A65 (APS-C) posses totally different sensor sizes.

Meta to Introduce 'AI-Generated' Labels for Media starting next month

The E-M1 III was introduced 8 years after the A65 which is quite a sizable gap as far as tech is concerned. Each of the cameras have different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony A65 being a Compact SLR camera.

Before delving right into a more detailed comparison, here is a short overview of how the E-M1 III grades against the A65 when considering portability, imaging, features and an overall score.

Below is a preview of the gallery images for Olympus OM-D E-M1 Mark III and Sony SLT-A65. The whole galleries are available at Olympus E-M1 III Gallery and Sony A65 Gallery.

For those who are intending to carry around your camera regularly, you'll need to think about its weight and dimensions. The Olympus E-M1 III offers outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) while the Sony A65 has dimensions of 132mm x 97mm x 81mm (5.2" x 3.8" x 3.2") having a weight of 622 grams (1.37 lbs).

Analyze the Olympus E-M1 III and Sony A65 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 select at that moment. Here is a front view size comparison of the E-M1 III and the A65.

Taking into account size and weight, the portability grade of the E-M1 III and A65 is 67 and 64 respectively.

Oftentimes, it's hard to visualise the difference between sensor sizes just by reading specifications. The pic here will offer you a more clear sense of the sensor sizes in the E-M1 III and A65.

To sum up, both of the cameras have different megapixels and different sensor sizes. The E-M1 III using its tinier sensor will make achieving shallower depth of field more difficult and the Sony A65 will deliver more detail using its extra 4 Megapixels. Higher resolution can also enable you to crop shots a bit more aggressively. The younger E-M1 III will have an advantage in sensor technology.