Full Frame is a designation for the size of the image sensor in a digital camera. This name refers to classic 35mm film, as the sensor has the same dimensions as a single film frame, approximately 36 × 24 mm. Thanks to its larger area, a Full Frame sensor can capture more light than smaller sensor types. This manifests in image quality, especially when shooting in low light conditions, where images contain less digital noise, which is an undesirable graininess in the image. Compared to smaller, so-called „crop“ sensors (for example, APS-C), Full Frame captures a wider field of view when using the same lens. It also allows for a shallower depth of field, meaning a more pronounced blurring of the background behind the focused object.
