Author: Isaac M - USA - May 2010 I recieved my diffraction grating and safety glasses much more quickly than expected. The diffraction grating was amazing and worked perfectly, I didn't lose much beam quality and it amazed me and my friends. The safety glasses were also incredibly useful, not only can it be an important safety tool,which it is excellent for when I can accidently reflect a beam, but is great for focusing in a spot to burn. It takes away a lot of extra glare while still having fine visibility.
Author: Tony S USA May 2011 Purchased Beam Fan and Matrix diffraction gratings for my Spartan 1 watt laser. Both give great visual effects that disperse a great distance and add extra twist to laser uses.
