Redaction, which means editing or rearranging, is a now widely used as a euphemism for censorship. It is a specific against another word now in vogue, transparency, applied wistfully to information which governments and others wish to remain opaque. An ugly usage.
Slow motion movie or high speed cameras focused on a face show it as something permanent, which it is not, the gaping fangs of a sportsman in the throes of anger or exaltation, or the anguish of someone in pain. The camera not only lies but, by freezing or slowing down images, grossly exaggerates what the eye normally witnesses. A cruel and dishonest exploitation. Alright for a flower opening but usually uncalled for in a grimace.