Olympus E-M1 vs Olympus E-M1 III

Following is a complete comparison of the Olympus E-M1 and Olympus E-M1 III, both Pro Mirrorless digital cameras and both are created by Olympus. The resolution of the E-M1 (16MP) and the E-M1 III (20MP) is pretty similar and both cameras posses the same sensor size (Four Thirds).

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The E-M1 was manufactured 7 years before the E-M1 III which is quite a significant gap as far as technology is concerned. Both of these cameras have the same body design (SLR-style mirrorless).

Before getting straight to a step-by-step comparison, here is a simple summary of how the E-M1 grades versus the E-M1 III in relation to portability, imaging, features and an overall score.

Here is a preview of the gallery images for Olympus OM-D E-M1 and Olympus OM-D E-M1 Mark III. The entire galleries are available at Olympus E-M1 Gallery and Olympus E-M1 III Gallery.

For anyone who is aiming to carry around your camera frequently, you will want to factor in its weight and dimensions. The Olympus E-M1 provides outside measurements of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") and a weight of 497 grams (1.10 lbs) whilst the Olympus E-M1 III has dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") along with a weight of 580 grams (1.28 lbs).

Look at the Olympus E-M1 and Olympus E-M1 III in the new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen during that time. Below is a front view scale comparison of the E-M1 versus the E-M1 III.

Looking at dimensions and weight, the portability score of the E-M1 and E-M1 III is 71 and 67 respectively.

Typically, it is very hard to imagine the gap between sensor sizes merely by reviewing specs. The picture underneath should offer you a far better sense of the sensor measurements in the E-M1 and E-M1 III.

As you can plainly see, each of these cameras have the same sensor dimensions albeit different MP. You should expect the Olympus E-M1 III to deliver more detail due to its extra 4 Megapixels. Higher resolution will enable you to crop photographs a bit more aggressively. The more aged E-M1 is going to be behind in sensor innovation.