File talk:Ruby laser rod and view through.JPG

"Crystal" clear, heh... well, even though it was more likely an autonomous figure of speech than a deliberate pun, you're certainly not wrong... (at least, so long as it's that slightly pinkish red light you're interested in viewing with absolute clarity, not any of the other colours that it attenuates, blocks or diffuses...) 193.63.174.254 10:26, 7 December 2016 (UTC)