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I heard once that it is easier to filter out (of the photos) light that comes from LED, but I can't find a good resource on it. Anyone know if this is true?
by Drdrdrq 9y ago
I heard once that it is easier to filter out (of the photos) light that comes from LED, but I can't find a good resource on it. Anyone know if this is true?
- russdill 9y agoHaving large LEDs turn completely off and back on quickly may prove too costly/difficult. Having a notch of light frequency missing from every outdoor LED might be a better solution. You could even wear special filtering glasses that would filter out all artificial light.
- hxtk 9y agoPeople actually used to do this. Back when most street lighting came from sodium lamps, you could eliminate light pollution almost completely with a pair of glasses intended for soda-lime glass blowing.
- anon1253 9y agoThat's not true. Old mercury and sodium lights are much easier to filter since their emission lines are narrow. LED often has a very broad and spiky spectrum, which makes it almost impossible to filter. (Source: astrophotographer). You can buy reliable light suppression filters for sodium/mercury (google CLS or UHC filter), but not LED
- dgsdgdsg 9y agoEasier to filter out than incandescents, not easier than the old sodium lamps. Also a single color LED is not too bad. But a (good) white LED has many primary color LEDs and phosphors to broaden the color spectrum as much as possible. But IMHO, wrt to incandescents they still suck.