Nice beam shots. Alien. I wish I knew the wavelength of your 490nm as they have been shown to be anywhere from 486nm to 493nm. It will also depend on the current you drive them at as they tend to increase 1nm when driven up to 200 mA even if the temperature is held constant. Can't rep you again so soon, but you will get another as soon as I can.
Thanks, Alien, for the beautiful beam shot comparisons! I really like the host and love your gorgeous video. It would be wonderful to see more beam videos posted on the Forum. +Rep :gj: Take Care.