Below you can find the On a camera using a mirror in the viewfinder the acronym slr stands for single-lens this Jeopardy Words Answer. The answer to On a camera using a mirror in the viewfinder the acronym slr stands for single-lens this has 6 letters. This clue belongs to the Photography category and is part of Jeopardy Word Level 1275. If you scroll near the bottom you will find other clues and answers part of level 1275