Olympus E-M10 vs Sony A7

In this article, we will be contrasting the Olympus E-M10 and Sony A7, former is a Entry-Level Mirrorless while the latter is a Pro Mirrorless by companies Olympus and Sony. There is a noticeable difference among the resolutions of the E-M10 (16MP) and A7 (24MP) and the E-M10 (Four Thirds) and A7 (Full frame) come with totally different sensor sizing.

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The E-M10 was brought out 2 months after the A7 so they are of a similar age. Each of these cameras offer the identical body type (SLR-style mirrorless).

Before diving straight into a thorough comparison, below is a short summation of how the E-M10 matches up against the A7 in the way of portability, imaging, features and an overall score.

Following is a preview of the gallery images for Olympus OM-D E-M10 & Sony Alpha A7. The entire galleries are provided at Olympus E-M10 Gallery & Sony A7 Gallery.

For anybody who is aiming to carry around your camera regularly, you're going to have to factor in its weight and proportions. The Olympus E-M10 enjoys external measurements of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") accompanied by a weight of 396 grams (0.87 lbs) whilst the Sony A7 has measurements of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 474 grams (1.04 lbs).

Contrast the Olympus E-M10 and Sony A7 in our newest Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change depending on the lens you select at that moment. The following is the front view scale comparison of the E-M10 compared to the A7.

Taking into account size and weight, the portability rating of the E-M10 and A7 is 82 and 78 respectively.

Often, it's tough to see the contrast in sensor sizes merely by seeing technical specs. The picture below will help provide you a stronger sense of the sensor sizing in the E-M10 and A7.

As you can tell, both of the cameras enjoy different megapixel count and different sensor sizes. The E-M10 because of its smaller sensor will make shooting shallower DOF trickier and the Sony A7 will show greater detail having its extra 8MP. Higher resolution will help you crop shots far more aggressively.