出典:Wiktionary
出典:『Wiktionary』 (2014/02/02 17:17 UTC 版)
From single + lens (contrasted against a twin-lens reflex camera, TLR), and reflex (“reflection”), the principle by which the image path is diverted.
single-lens reflex (not comparable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/23 18:43 UTC 版)
A single-lens reflex (SLR) camera is a camera that typically uses a semi-automatic moving mirror system that permits the photographer to see exactly what will be captured by the film or digital imaging system (after a very small delay), as opposed to pre-SLR cameras where the view through the viewfinder could be significantly different from what was captured on film. (The Canon Pellix film camera was an exception wherein the mirror was a fixed beamsplitting pellicle.)