I am getting a 2watt 445nm for burning aiptasia in a reef tank. They can rang in size from microscopic to 1/2 in. in diameter at the stalk. I am wondering the pros and cons of both lenses? What would be your recommendations?
Well I just ordered the kit and it is not a g2 but a lens with 2 pieces of glass. The stated rating through the 2 piece lens is 1.7watts and 2 watts through the G1. Is there a big difference between the G1/G2 and these less expensive lenses?
The three element element lens will have a lower divergence and is pretty inexpensive but it has a lot of splash with 445. The G-1/2 lenses will pass 300-500mW more power @ 1.8A with a M140 and has a much cleaner output but since it does not do much to correct the beam it has a more elongated line output and it is much more expensive. So it is a give and take. You cant really say one is better than the other. It is personal preference.:beer: