The image sensor in a camera is crucial for capturing high-quality photos and videos. It acts as the digital equivalent of film, capturing light and converting it into an electronic signal.
An image sensor is made up of millions of photodiodes that collect light and convert it into electrical signals. The size of the sensor directly affects the image quality, with larger sensors able to capture more light and detail.
In digital cameras, image sensors come in two main types: CCD (charge-coupled device) and CMOS (complementary metal-oxide-semiconductor). Both types work similarly, but CMOS sensors tend to be more cost-effective and consume less power.
The image sensor is an important factor to consider when choosing a camera for film and video production. A larger sensor allows for shallower depth of field, which can add a cinematic quality to shots, while a smaller sensor may struggle in low-light conditions.