The
FAC upgraded diodes with a square spot output needs a much longer FL lens to focus at distance.
View attachment 73260
The
FAC upgraded diodes with the line output you can use with our normal lenses and have improved divergence if I understand what Drake said over on discord correctly and I believe I do, I haven't bought any yet ( well I just did actually ) as I prefer c-lens correction, however I would like to build a knife edge array with several after I test the one I have ordered, now the square output FAC diode I have in the nubm08 unit and it's the one in my pic, it won't focus worth a dam with our normal lenses ( G2, G3, 3E, G7, G8 ) but will focus to point at distance with a bigger/longer focal length lens, I expect these are made for the home hobby cnc makers and the line output for improved display beams....Soo you want the FAC diodes red, green or blue with the line output for your pointer builds and you should have improved divergence, I will try to post results of mine when I get it.