Single-lens reflex. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/single-lens-reflex
(photography) Denoting or relating to a type of camera which allows the photographer to view the subject through the same lens that will be used to take a photograph, usually by incorporating a moving mirror and prism.
From single +"Ž lens (contrasted against a twin-lens reflex camera, TLR), and reflex (“reflection"), the principle by which the image path is diverted.
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