I think this thread was about the new S-1
lens. They do outperform the G-2 in some
cases, but I wouldn't call them a
"replacement", more like an alternative.
DTR has the genuine G-2, and AixiZ has these.
That's good advice. That is what I did with one of my 445nm lasers, but the Envy has a new Nichia diode in it and it does fine with a single element lens. I don't know why this diode is so much better than the harvested ones, but it is.