Feb 25, 2018 #17 S steve001 0 Joined Jun 3, 2007 Messages 2,560 Points 113 paul1598419 said: Yes, I know that, but it seemed likely if is a 532nm it would have a diverging, negative, lens before the collimaing, positive, one. It wasn't worth the time to go into an explanation on optics. Click to expand... I see.
paul1598419 said: Yes, I know that, but it seemed likely if is a 532nm it would have a diverging, negative, lens before the collimaing, positive, one. It wasn't worth the time to go into an explanation on optics. Click to expand... I see.
