4 ms·

Orange is a lot better if you want to keep your night vision and be able to see into the shadows (or e.g. look at the stars with your unassisted eyes).

• brandmeyer 7y ago
  Contrary to popular belief, cyan is better for night vision. Your rods are most sensitive to cyan, so you can use much dimmer cyan light than you can use red/orange light. http://stlplaces.com/night_vision_red_myth/ http://stlplaces.com/night_vision_red_myth/
  • jacobolus 7y ago
    The question is not what you can see best with the least energy, but what kind of glare in your peripheral vision will cause bright-adaptation. Your page there seems to be based on its author looking at the sentitivity curves for rods and cones and then speculating, but not as far as I can tell based on experimental evidence about how well the eyes stay dark-adapted. Edit: Moreover, the type of lamps appropriate for medium-bright street lighting and the type of lamps appropriate for briefly turning on to dimly see your camera gear while you fiddle with it when you are out taking night-sky photographs are quite different. Disclaimer: I am not an expert on triggers for brightness adaptation. I should try to hunt up some research papers sometime.) Looks like https://www.osapublishing.org/josa/abstract.cfm?uri=josa-41-6-402 https://www.osapublishing.org/josa/abstract.cfm?uri=josa-41-... is a reasonable place to start looking into the citation graph. https://scholar.google.com/scholar?cites=4424978361272323417 https://scholar.google.com/scholar?cites=4424978361272323417 Or maybe https://www.sciencedirect.com/science/article/pii/S0042698977800011 https://www.sciencedirect.com/science/article/pii/S004269897... https://scholar.google.com/scholar?cites=14694116360901580947 https://scholar.google.com/scholar?cites=1469411636090158094...