8-mm; 8mm film; 8mm camera
Refers to the 8-mm film format or equipment using it, such as cameras and projectors. Often used in contexts like home movies or amateur filmmaking.
My grandfather used to shoot family videos with an 8mm camera.
This movie was shot on 8mm film.
Compound of 八 (はち, 'eight') and ミリ (from English 'milli'), referring to the 8-millimeter film gauge.