Olympus E-300 vs Sony a5100

Below, we will be matching up the Olympus E-300 vs Sony a5100, former being a Advanced DSLR while the latter is a Entry-Level Mirrorless by companies Olympus and Sony. There is a large difference between the sensor resolutions of the E-300 (8MP) and a5100 (24MP) and the E-300 (Four Thirds) and a5100 (APS-C) come with totally different sensor measurements.

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The E-300 was announced 10 years before the a5100 and that is quite a serious difference as far as tech is concerned. Both of these cameras come with different body type with the Olympus E-300 being a Mid-size SLR camera and the Sony a5100 being a Rangefinder-style mirrorless camera.

Before we go through a in-depth comparison, below is a brief overview of how the E-300 grades against the a5100 in the way of portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Olympus E-300 & Sony Alpha a5100. The whole galleries are available at Olympus E-300 Gallery & Sony a5100 Gallery.

For anyone who is planning to lug around your camera, you will need to factor its weight and size. The Olympus E-300 features external measurements of 147mm x 85mm x 64mm (5.8" x 3.3" x 2.5") accompanied by a weight of 624 grams (1.38 lbs) and the Sony a5100 has specifications of 110mm x 63mm x 36mm (4.3" x 2.5" x 1.4") accompanied by a weight of 283 grams (0.62 lbs).

Contrast the Olympus E-300 vs Sony a5100 in our completely new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will change dependant on the lens you choose at the time. Here is the front view sizing comparison of the E-300 vs the a5100.

Using size and weight, the portability grade of the E-300 and a5100 is 67 and 89 respectively.

Usually, its hard to envision the contrast between sensor measurements purely by going over technical specs. The visual below will give you a stronger sense of the sensor sizing in the E-300 and a5100.

As you have seen, the 2 cameras have got different megapixels and different sensor measurements. The E-300 having a tinier sensor will make achieving shallow depth of field trickier and the Sony a5100 will offer extra detail with its extra 16 Megapixels. Higher resolution can also help you crop shots much more aggressively. The older E-300 is going to be behind when it comes to sensor tech.