What?! Where did you get that from? There's almost no difference. Anyway the G9 I don't think are going to be available anymore, DTR is clearing out the last of them really cheap. I think the projector they were salvaged from has been discontinued.I'm pretty such as as u google, u should find what u want. Just a rought outline, G9 can have as much as 15% increase from a G2.
Nice. I did a test recently with similar results but deleted the video test because it was going to cause a problem.As tttonyyy mentioned above (thanks Tony!), I did an extensive study a while back comparing the G9, G2, 3-element, and acrylic lenses, see here:
G9 pretty consistently beats the G2 by 10-15%, in terms of raw power.