system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What does it mean when an old movie gets “digitally remastered” or how do old clips that are decades old suddenly look really sharp?
gpt
Film is naturally pretty sharp, depending on the quality of the lens and focusing to film it. They then scan the film at high resolution and master that instead of the original film master. They are still limited to the capabilities of the film but that often far exceeds the old capabilities to project it or transfer it to another medium.