Why wouldnt SF's TIR produce dartboard
- Thread starter jh333233
- Start date
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shao.fu.tzer
Flashlight Enthusiast
Probably because your TIR wasn't mounted properly or you were using the wrong size. TIRs are very picky. You can't use a TIR meant for a XR-E on an XP-G for example... Also, it could boil down to imperfections in your optics...
Shao
Shao
ebow86
Flashlight Enthusiast
The "dartboard" pattern is probably too difficult to pick up on some of those youtube videos, it isn't the same as taking a still photograph. My understanding is surefire uses a type of LDF (light diffusing film) over the lens over their TIR based lights to smooth out the beam pattern as much as possible with compromising it's throw. I'm sure the beam pattern of TIR lights varies between different models.
