Here is a quick and dirty photoshop edit of a photo I took to illustrate the camera's version of reality... above is the unedited photo, below is the edited version depicting how the beam appears to my eyes:
The output powers are 250mW 445nm and 130mW 532nm.
Air is "clean."
Awesome, thanks ken! That is actually pretty close in terms of brightness. That is good to hear. I am attempting to build a 50-75mW 445 in a pen, and I was hoping it would still be pretty bright. Based on this, a 75mW 445 may be equivalent to a 40-50mW green. And a 50mW would be similar to a 30mW green. Which is actually still quite bright!