Olympus E-M5 III vs Sony A300

Lets take a more detailed look at the Olympus E-M5 III vs Sony A300, one being a Advanced Mirrorless and the other is a Entry-Level DSLR by manufacturers Olympus and Sony. There exists a big gap between the sensor resolutions of the E-M5 III (20MP) and A300 (10MP) and the E-M5 III (Four Thirds) and A300 (APS-C) come with different sensor sizing.

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The E-M5 III was unveiled 11 years later than the A300 and that is quite a big gap as far as technology is concerned. Both of these cameras offer different body type with the Olympus E-M5 III being a SLR-style mirrorless camera and the Sony A300 being a Compact SLR camera.

Before delving straight into a more detailed comparison, below is a concise summary of how the E-M5 III scores versus the A300 when considering portability, imaging, features and an overall grade.

Here is a sample of the gallery pictures for Olympus OM-D E-M5 III and Sony Alpha DSLR-A300. The full galleries are provided at Olympus E-M5 III Gallery and Sony A300 Gallery.

For anybody who is aiming to lug around your camera regularly, you'll need to factor in its weight and volume. The Olympus E-M5 III comes with outer dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) whilst the Sony A300 has sizing of 131mm x 99mm x 75mm (5.2" x 3.9" x 3.0") and a weight of 632 grams (1.39 lbs).

Take a look at the Olympus E-M5 III vs Sony A300 in the latest Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you use at the time. Here is the front view proportions comparison of the E-M5 III and the A300.

Considering dimensions and weight, the portability rating of the E-M5 III and A300 is 80 and 64 respectively.

More often than not, it is very tough to visualize the gap between sensor measurements merely by reading a spec sheet. The visual here may provide you a much better sense of the sensor sizes in the E-M5 III and A300.

Clearly, the two cameras enjoy different megapixels and different sensor measurements. The E-M5 III using its tinier sensor is going to make shooting shallow DOF harder and the Olympus E-M5 III will deliver more detail having an extra 10MP. Greater resolution will make it easier to crop photos far more aggressively. The newer E-M5 III provides an advantage when it comes to sensor tech.