Full frame意思

"Full frame" is a term primarily used in photography and cinematography, referring to the size of a camera's image sensor. It comes from the historical size of 35mm film, which was the standard for many years in photography. A full-frame camera has an image sensor that is approximately the same size as a single frame of 35mm film.

In photography, a full-frame camera is one that has a sensor that measures approximately 24mm x 36mm. This is the largest sensor size commonly found in digital cameras, and it's considered the "professional" or "high-end" option by many photographers. Full-frame cameras are known for their high image quality, low light performance, and shallow depth of field capabilities.

In cinematography, the term "full frame" can also refer to the aspect ratio of a film or digital cinema camera. The standard aspect ratio for cinema is 1.85:1 or 1.90:1, which is slightly wider than the 3:2 aspect ratio of a full-frame camera sensor. However, the term is less commonly used in this context, and "full frame" is more often associated with the sensor size in photography.

It's important to note that the term "full frame" is not an official designation and can vary slightly among different camera manufacturers. For example, some cameras may be slightly larger or smaller than the traditional 35mm film frame size, but they are still marketed as "full frame" because they are close enough to the standard and offer similar benefits in terms of image quality and performance.