Olympus E-620 vs Sony A9

Here, we are contrasting the Olympus E-620 and Sony A9, former being a Entry-Level DSLR while the other is a Pro Mirrorless by rivals Olympus and Sony. There exists a considerable gap among the image resolutions of the E-620 (12MP) and A9 (24MP) and the E-620 (Four Thirds) and A9 (Full frame) boast different sensor sizes.

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The E-620 was unveiled 8 years prior to the A9 and that is a fairly large difference as far as camera technology is concerned. Both of these cameras feature different body design with the Olympus E-620 being a Compact SLR camera and the Sony A9 being a SLR-style mirrorless camera.

Before delving straight to a step-by-step comparison, here is a simple view of how the E-620 matches up versus the A9 with respect to portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Olympus E-620 & Sony Alpha A9. The full galleries are provided at Olympus E-620 Gallery & Sony A9 Gallery.

When you are going to carry your camera frequently, you're going to have to factor in its weight and volume. The Olympus E-620 offers exterior measurements of 130mm x 94mm x 60mm (5.1" x 3.7" x 2.4") with a weight of 500 grams (1.10 lbs) and the Sony A9 has sizing of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") having a weight of 673 grams (1.48 lbs).

Contrast the Olympus E-620 and Sony A9 in our completely new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change dependant on the lens you are working with during that time. Here is a front view dimensions comparison of the E-620 compared to the A9.

Taking into consideration dimensions and weight, the portability score of the E-620 and A9 is 71 and 65 respectively.

More often than not, its difficult to visualize the contrast in sensor sizing just by viewing specs. The graphic here may give you a far better sense of the sensor sizing in the E-620 and A9.

All in all, both of these cameras feature different megapixel count and different sensor sizing. The E-620 with its smaller sensor is going to make shooting shallow depth of field more challenging and the Sony A9 will provide you with greater detail having an extra 12MP. Greater resolution will also allow you to crop images way more aggressively. The older E-620 will be disadvantaged when it comes to sensor technology.