Olympus E-M1 III vs Sony A330

Below, we are matching up the Olympus E-M1 III and Sony A330, one being a Pro Mirrorless and the other is a Entry-Level DSLR by companies Olympus and Sony. There exists a big gap between the resolutions of the E-M1 III (20MP) and A330 (10MP) and the E-M1 III (Four Thirds) and A330 (APS-C) feature totally different sensor sizes.

Photography Glossary

The E-M1 III was revealed 10 years later than the A330 and that is quite a big gap as far as technology is concerned. Each of these cameras come with different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony A330 being a Compact SLR camera.

Before going straight into a in-depth comparison, below is a brief view of how the E-M1 III matches up vs the A330 in terms of portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Olympus OM-D E-M1 Mark III and Sony Alpha DSLR-A330. The full galleries are viewable at Olympus E-M1 III Gallery and Sony A330 Gallery.

In case you're going to carry your camera often, you will have to think about its weight and volume. The Olympus E-M1 III comes with outer measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) and the Sony A330 has sizing of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") accompanied by a weight of 529 grams (1.17 lbs).

Analyze the Olympus E-M1 III and Sony A330 in the latest Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you choose at that time. The following is the front view over all size comparison of the E-M1 III against the A330.

Considering dimensions and weight, the portability rating of the E-M1 III and A330 is 67 and 67 respectively.

Quite often, it's difficult to envision the difference between sensor sizing just by reading through specs. The photograph here might offer you a far better sense of the sensor measurements in the E-M1 III and A330.

All in all, the 2 cameras posses different resolutions and different sensor sizing. The E-M1 III having a tinier sensor will make achieving shallow DOF more difficult and the Olympus E-M1 III will give extra detail because of its extra 10MP. Greater resolution can also make it easier to crop pics somewhat more aggressively. The fresher E-M1 III is going to have an edge when it comes to sensor tech.