Olympus E-PL3 vs Sony A7 III

Here is a detailed assessment of the Olympus E-PL3 and Sony A7 III, former being a Entry-Level Mirrorless while the latter is a Pro Mirrorless by manufacturers Olympus and Sony. There exists a noticeable gap among the sensor resolutions of the E-PL3 (12MP) and A7 III (24MP) and the E-PL3 (Four Thirds) and A7 III (Full frame) posses different sensor size.

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The E-PL3 was manufactured 7 years before the A7 III and that is a fairly sizable difference as far as camera technology is concerned. Each of these cameras have different body design with the Olympus E-PL3 being a Rangefinder-style mirrorless camera and the Sony A7 III being a SLR-style mirrorless camera.

Before going straight to a full comparison, here is a quick view of how the E-PL3 grades versus the A7 III with respect to portability, imaging, features and an overall rating.

The following is a preview of the gallery photos for Olympus PEN E-PL3 & Sony Alpha A7 III. The entire galleries are viewable at Olympus E-PL3 Gallery & Sony A7 III Gallery.

For anyone who is intending to carry your camera regularly, you have to factor its weight and volume. The Olympus E-PL3 offers external measurements of 110mm x 64mm x 37mm (4.3" x 2.5" x 1.5") and a weight of 313 grams (0.69 lbs) and the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 650 grams (1.43 lbs).

Look at the Olympus E-PL3 and Sony A7 III in our newest Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary dependant on the lens you have chosen at that time. Underneath is a front view sizing comparison of the E-PL3 compared to the A7 III.

Factoring in dimensions and weight, the portability grade of the E-PL3 and A7 III is 88 and 63 respectively.

Normally, it is very tough to imagine the difference in sensor sizing just by checking out specs. The graphic here may provide you a more clear sense of the sensor sizing in the E-PL3 and A7 III.

As you can plainly see, each of these cameras have different resolutions and different sensor sizing. The E-PL3 featuring a smaller sensor is going to make shooting shallow depth of field more difficult and the Sony A7 III will provide more detail due to its extra 12 Megapixels. Higher resolution can also allow you to crop pictures a bit more aggressively. The older E-PL3 will be behind when it comes to sensor tech.