In the film industry, are low-resolution, lightweight versions of your original high-quality footage. They are used as "stand-ins" during the editing process to prevent lag and stuttering, especially when working with massive 4K or 8K RAW files on standard laptops or older computers. Why Use Proxies?
: Allows editing on hardware that normally couldn't handle high-bitrate codecs like H.265 or Red Raw. Workflow Guide
A standard "offline/online" proxy workflow follows these steps: Everything About Proxies