Jan 5, 2020 #17 paul1598419 0 Joined Sep 20, 2013 Messages 17,571 Points 113 Okay, Then it's a neutral density filter. I wonder why they decided to use one of those on a handheld laser. Meh.
Okay, Then it's a neutral density filter. I wonder why they decided to use one of those on a handheld laser. Meh.