I'm trying to interpret your numbers...It looks like the HID's, as a pattern, are brighter in the first few seconds, and then settle down to a lower brightness?
And assuming those are Lux at 1 meter #'s...that would put the SR90 way higher than I would think makes any sense...? Visually, I would have pictured it ~ the performance of a 35 watt HID or so as far as throw...so, do you have a order of magnitude missing from your Lux#'s above, or are they something other than lux at one meter?
I used the total OTF #'s from the esteemed testors you referred to (I'm guessing, as that's how many posted the OTF lumens...) as well, as they seemed to agree with each other.
Figure its rated for 2,200 emitter lumens...so 2,000 OTF would be a high estimate typically...~1,700 lumens would be a good guess though...as that's what Olight actually says on the website right now (Looked).
So perhaps the OTF was under estimated here...or over estimated by Olight...or both, etc.
Even if we use the 1,700 lumens...15% = 255 lumens, etc....its the same order of magnitude.
One thing I've noticed about perceived brightness, it is judged differently by different people. I can show two lights, one thrower, and one flood...and they can have the same OTF ratings, and one person will say the Thrower is MUCH BRIGHTER...and the other person will say the Flooder is MUCH BRIGHTER, and so forth.
So, I think its the way we're hardwired....just like some of us see a gal as too skinny, and someone else will call them fat.
For me, its about what I can see. I spend a lot of time looking for things, and, when not looking for work, I'm experimenting.
My next experiment will be to see at what ranges we need how many lux to resolve details. I plan to compare a man carrying wood in his arms to a man carrying fire arms, and see at what range we can tell them apart...at what lux level.
Preliminary data indicates that while we use 0.25 lux as our default throw limit designation...and you can definetely see fine right in front of you at 0.25 lux...you CAN'T resolve fine detail several hundred yards away at 0.25 lux.
My theory is that the part of your eye that you USE to focus on a distant object is very poor in low light situations, and your more periphreal vision (~ 2º + off center) has better light reception than your fovea.
So while you can navigate around objects, etc, at 0.25 lux w/o a problem, or even less...I want to see how many lux we need to tell if a guy has a gun or a stick when he's a long way off in the dark.
So, the MF, etc... will be part of this.
