Same as Glenns GB prices. They were rated 80mW and 50mW. The picture with 2 yellow dots is a comparison of 593 and 589. I'll try and get more pics soon.
I think they look more the same to the eye, the camera often "sees" 635nm as far different from 660nm, the eye sees it as a slight difference, also, I know a yellow 20 593.5nm mW will look less orange than the same wl at 2 mW, our eyes are tricky like that, try this, reflect off 1 or 2 clear glass panes and compare the equal brightness dots from 589 and 593.5nm and I bet it's almost too hard to tell a difference! I'll see in about a week when the next GB gets in. But great pics Yobresal! -Glenn
Yeah it could just be the brightness that is causing this. I can definetly see a difference though in person. The 594nm is more orange. I will try and get some more pics tonight when I get off of work.
I had my hopes up about the 589nm pen until I saw it was in the phat case. Still would be very interested in seeing a comparison between it and an equal power 593.5 though.