Have you used this filter on a Tiablo or orther LED based torch?
I ask because the physics dont work out for the led unit in the P7, it uses an LED from Philips and the peak output or 100% is around 420nm, so in the visible IR range, however when you look at the graph it drops very sharply to less than 17% at 740nm, still just visible IR, but once you get to 750nm and above the output drops to less than 5%,
So how can an 850nm true IR filter be any good on a torch with less than 10 lumens of power at that wavelength? Am I missing something?
Your guess is as good as mine, i did a s