Well, time to figure out how to make my proposed setup with an XHP70. ^:)
A short, threaded tube above the TIR would allow us to finely adjust the convex lens position (with a threaded lens, of course). This should allow us to adjust the beam width… shouldn't it? Of course this middle lens would need to be of a short focal distance, as I said before. Correct me if this sounds wrong.
nice! yeah this was what I had in mind too (and I do remember Old Lumens say this would be the kind of light he would want to see produced, so I am thinking about adding some $ on each to give to Justin and Valerie)
I know this will add a lot more complications, but I much prefer if this light will have a side switch. It just makes it so much easier to turn the light on/off with these bulky lights. Changing grip position is not too big of a deal with the smaller lights, but cigar or a tactical grip on these bulky lights then changing grip to your standard grip, may lead to a drop on the floor potentially or eventually. Haha
Djozz wrote: “The debate is lumen vs throw. It will be a big light so will we be happy with a 1400 lumen XP-L HI and try to hit 1Mcd?, or will we settle for 700kcd with a 2000+ lumen XHP35?, or go 4000 lumen / 300kcd with a XHP70? (numbers are a very fast guess)”
Throw please, and lots of it!!
700Kcd with a 2000+ lumen XHP35? - no thanks, I already got the TN42 (680Kcd & 2500 lumen)
300Kcd with a 4000+ lumen XHP70? - no thanks, there’s already lights that to exactly that
NOT because a thrower with that much output would blind you to an extend that the throw would be useless.
Throwers that need to light something up, FAR AWAY should have minimum spill and max throw.
This would not be an EDC or even an allround light but a dedicated thrower, outhrowing the TN42.
Oslon Black Flat might not be a bad idea - with a reflector that big and 230 cd/mm² we could get over 1,5Mcd………with a pencil beam still, fun and reach!
XPG3 sliced should be a bit smaller die, and a bit larger surface brightness. Or a XPG2 sliced. If not then everybody will mod it with something to gain the most throw. XHP35hi might hit it too. When you make a Giga Thrower throw is the most important characteristic. There are PLENTY of lights available that can throw a bit, for impressively low price. But almost none that can hit 1mcd. Asking for a Giga thrower to have spill is not getting the point of the thrower. You have L6 if you need spill, or any other light. But us throw people do not have throwers. This will be the first of its kind. And perhaps the best if designed correctly. Please save the spill, lumen and other clarifications for other topics “giga flooder” or “giga EDC”. Here mcd should be the one and only point.
milli-candela? I think that is for another BLF project, which is interesting as well: a sub-lumen light with the right tint and runtime.
But of course the idea is ‘BLF Mcd’, which I find a great name, and also a name to stay focussed on the goal here.
I am in the process of being convinced by the last few mails that throw is the single most important goal of this project. I would like to refine that with maximising throw/volume and throw/weight. I add the last one for myself because there is a tendency on BLF that weight=good, while I totally disagree with that: IMO weight is a necessary evil. (Olight understands that btw)