What is a Micro Four Thirds Camera – Guide

Micro Four Thirds is a mirrorless, interchangeable lens camera system. It was introduced in 2008 by Panasonic and Olympus. The Micro Four Thirds camera offers photographers a smaller, more compact alternative to full-frame DSLRs. In this article, we will explain in more detail how and why Micro Four Thirds came about. We will also discuss what the future will look like for this cool camera system and whether you should include one in your tool bag.

Micro Four Thirds Sensor Size

You can see in the chart above the size of a four-thirds micro sensor compared to an APS-C or full frame sensor. With a larger sensor, you generally get a higher quality image, greater dynamic range, and a wider selection of lenses.

How it works?

Traditional DSLRs and SLRs still use much of the same technology that created photography. A manual (albeit motorized) system inside exposes a sensor for a set period, reflecting light from a mirror inside the body. When you press the shutter, the mirror flips over, the shutter opens and the aperture closes so light can pass through to the sensor. As the name suggests, mirrorless has no mirror. The light is exposed directly to the sensor which needs much less distance, allowing camera be smaller. If you remove the lens from a mirror camera the sensor is visible from the inside, on a DSLR you will see a mirror and reflector system to reflect light. Mirrorless is quieter and there is no “click” noise because there is no mirror reversal up inside.


Micro 4/3 vs Mirrorless

Before you buy

Who should buy a Micro Four Thirds camera?

Final note

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