Hi Folks,
I can not understand why big buyers (except FourDee ) are expressing more interest in the 642nm when the 637nm diode looks like a better buy all round, and extra especially for those mixing with existing 650 & 660nm setups.
I realize that they are more expensive but possibilities of real, visible Red Power with adjustable beam size for graphics/safe beam shows only seems to lie down the 637nm route.
For me the 642nm route is definitely the option B. (better than nothing though).
Could anyone interested in firming up the slightly more expensive,better brightness,more power,isolated can...... 637nm option please step in with comments before it is too late and we are all committed to 642 due to lack of numbers!
If not I will have to follow the herd and jump in anyway so as not to lose the GB.
Cheers
PS. @dave ....... PM in tube, but with much the same observations.