Zebralight H51
Zeabralight H502
Fenix HL21
Spark SD52
The Zebralight H51 is my favorite AA headlamp. I hope this helps!
Sorry I missed that! Maybe duct tape two h51's together and put a red filter on one? lolyes but the OP asked about a headlamps with a red light mode which uses multiple cells. :tinfoil: Far fewer options with those requirements.
yes but the OP asked about a headlamps with a red light mode which uses multiple cells.
Sorry I missed that! ...lol
Red light as marker? Or red light for night vision?
Or red light for insect avoidance? Red light is quite effective for preventing mosquitoes and moths from swarming in front of your face.
Red light as marker? Or red light for night vision? Most inexpensive red LEDs that advertise themselves for night vision, don't work for night vision, as they're too orange-red and bright, conferring little if any advantage for night vision. See MANY discussions on this topic in this forum, particularly posts by Bowzer.
Point being, chances high you'll actually be better off with a low-level sub-lumen white, than an "add on for marketing purposes" unadjustable orange-red. The general rule is, if it's bright enough that you can perceive any color (including red!), then it's too bright to help you maintain night vision.
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Or red light for insect avoidance? Red light is quite effective for preventing mosquitoes and moths from swarming in front of your face.
My experience has been that anything too high in the blue spectrum turns your face into a non-lethal bugzapper; neutral and warm emitter work fine against moths, but mosquitoes find you even with no light.
How about just using a red filter?
Mosquitos are sensitive to body heat, which is how they can still find you even in the dark.
A red filter, if a good one allowing the proper wavelengths, should work very well. Since it's only passing a small portion of an emitter's spectrum, it should not only provide a good wavelength for preserving night vision, but also have a strong dimming effect as well, which will also be important for preserving night vision.
Exactly what I meant, but in more words
Do you know if there are any 630 - 680 nm filters? Not sure if Fenix ever mentioned what theirs isN but it definitely is not so deep red.
I've been trying to determine if a standard #29 deep red photographic filter is in the proper range, but have yet to find anything reliable whether it is or not. I suspect it would be, but I could be wrong. That's all I can think of that might be the right range of wavelengths.
You know what, I haven't even realized this until today: I think that in the the Lee filter sample pack they give a graph of the bandpass... I'll have to jump on that when I get home. There must be at least one filter in the proper range...
Any info would be appreciated! If it is indeed the right band-pass, then we could be on to something very useful!