Not really true, I have a couple 303's going on 3 years and the only reason the spot looked bad on one of mine was when I tried to clean it even though it was fine..Don't touch something if it ain't broke..All lasers lenses "tend to get dirty".I’m afraid, but only new lens will help. Those 303 lenses last a few days before they get out of use. They all tend to get dirty and you can’t really make them clean again. You get what you pay for.
Conclusion: Don’t buy 303
Please do search LPF. This topic has been discussed here few weeks ago AFAIK.Hey guyz,i ve recently bought ANOTHER 303 laser and i ve got a problem,there are a lot of dots near the beam,can you help me out?
I ve tried compressed air and everything.