Four Thirds System

The Four Thirds System is a camera design standard that uses a smaller image sensor compared to traditional 35mm film or full-frame cameras. Its name comes from the sensor's dimensions, which are about one-quarter the size of a full-frame sensor. This system allows for smaller, lighter camera bodies and lenses, making it ideal for portability and versatility. Despite the smaller sensor, Four Thirds cameras can produce high-quality images with good depth of field and low-light performance. It’s popular among enthusiasts and professionals who value compactness without significantly compromising image quality.