Olympus E-3 vs Sony A9

In this write-up, we are matching up the Olympus E-3 vs Sony A9, one is a Advanced DSLR and the other is a Pro Mirrorless by competitors Olympus and Sony. There exists a crucial gap between the image resolutions of the E-3 (10MP) and A9 (24MP) and the E-3 (Four Thirds) and A9 (Full frame) feature totally different sensor sizing.

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The E-3 was unveiled 10 years before the A9 which is quite a serious gap as far as technology is concerned. Both of these cameras offer different body type with the Olympus E-3 being a Mid-size SLR camera and the Sony A9 being a SLR-style mirrorless camera.

Before diving in to a comprehensive comparison, below is a concise synopsis of how the E-3 scores vs the A9 for portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Olympus E-3 and Sony Alpha A9. The full galleries are available at Olympus E-3 Gallery and Sony A9 Gallery.

When you are going to travel with your camera frequently, you'll need to think about its weight and measurements. The Olympus E-3 provides exterior measurements of 142mm x 116mm x 75mm (5.6" x 4.6" x 3.0") and a weight of 890 grams (1.96 lbs) and the Sony A9 has proportions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") and a weight of 673 grams (1.48 lbs).

See the Olympus E-3 vs Sony A9 in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilizing at the time. Below is the front view over all size comparison of the E-3 against the A9.

Factoring in dimensions and weight, the portability rating of the E-3 and A9 is 56 and 65 respectively.

Quite often, it's tough to envision the contrast between sensor dimensions just by going over specs. The pic below may give you a more clear sense of the sensor measurements in the E-3 and A9.

As you can plainly see, the 2 cameras offer different megapixels and different sensor dimensions. The E-3 having a tinier sensor will make shooting shallow DOF more challenging and the Sony A9 will offer you greater detail having an extra 14MP. Greater resolution can also allow you to crop photos a little more aggressively. The more aged E-3 is going to be behind with regard to sensor tech.