Olympus E-300 vs Olympus E-M5 III

In this article, we are contrasting the Olympus E-300 versus Olympus E-M5 III, one being a Advanced DSLR and the other is a Advanced Mirrorless and both are manufactured by Olympus. There exists a huge gap among the image resolutions of the E-300 (8MP) and E-M5 III (20MP) but they enjoy the same exact sensor dimensions (Four Thirds).

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The E-300 was unveiled 15 years before the E-M5 III and that is a fairly significant gap as far as camera technology is concerned. Both of the cameras offer different body type with the Olympus E-300 being a Mid-size SLR camera and the Olympus E-M5 III being a SLR-style mirrorless camera.

Before getting in to a in depth comparison, below is a concise introduction of how the E-300 matches up against the E-M5 III in terms of portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Olympus E-300 and Olympus OM-D E-M5 III. The full galleries are available at Olympus E-300 Gallery and Olympus E-M5 III Gallery.

When you are planning to carry your camera frequently, you should consider its weight and proportions. The Olympus E-300 comes with physical measurements of 147mm x 85mm x 64mm (5.8" x 3.3" x 2.5") with a weight of 624 grams (1.38 lbs) and the Olympus E-M5 III has measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs).

Analyze the Olympus E-300 versus Olympus E-M5 III in the new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change depending on the lens you select at that time. Underneath is the front view overall size comparison of the E-300 and the E-M5 III.

Considering dimensions and weight, the portability grade of the E-300 and E-M5 III is 67 and 80 respectively.

Typically, it is tough to envision the difference in sensor sizing only by seeing specs. The graphic below will help give you a better sense of the sensor sizing in the E-300 and E-M5 III.

As you can plainly see, each of these cameras offer the same exact sensor sizing but not the same resolution. You should anticipate the Olympus E-M5 III to produce greater detail having an extra 12 Megapixels. Greater resolution will allow you to crop pics a little more aggressively. The older E-300 will be behind with regard to sensor technology.