Olympus E-P3 vs Sony A9

Lets look a little more in depth at the Olympus E-P3 versus Sony A9, one is a Entry-Level Mirrorless and the other is a Pro Mirrorless by brands Olympus and Sony. There is a huge difference among the image resolutions of the E-P3 (12MP) and A9 (24MP) and the E-P3 (Four Thirds) and A9 (Full frame) boast totally different sensor size.

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The E-P3 was launched 6 years prior to the A9 which is a fairly significant gap as far as camera tech is concerned. Both cameras feature different body design with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Sony A9 being a SLR-style mirrorless camera.

Before we go into a step-by-step comparison, here is a concise introduction of how the E-P3 scores against the A9 in terms of portability, imaging, features and an overall mark.

The following is a sample of the gallery pics for Olympus PEN E-P3 and Sony Alpha A9. The complete galleries are provided at Olympus E-P3 Gallery and Sony A9 Gallery.

For those who are intending to travel with your camera frequently, you're going to have to factor its weight and size. The Olympus E-P3 offers physical measurements of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") having a weight of 369 grams (0.81 lbs) while the Sony A9 has specifications of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") with a weight of 673 grams (1.48 lbs).

Compare the Olympus E-P3 versus Sony A9 in the new Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen during that time. Here is a front view dimension comparison of the E-P3 vs the A9.

Considering size and weight, the portability grade of the E-P3 and A9 is 86 and 65 respectively.

Usually, it is difficult to visualise the gap in sensor dimensions just by checking out specs. The pic underneath might give you a better sense of the sensor measurements in the E-P3 and A9.

All in all, both the cameras come with different resolutions and different sensor dimensions. The E-P3 featuring a smaller sensor will make achieving shallower DOF more difficult and the Sony A9 will show more detail utilizing its extra 12 Megapixels. Greater resolution will also make it easier to crop photos a good deal more aggressively. The more aged E-P3 will be disadvantaged when it comes to sensor innovation.