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- Sep 16, 2007
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I've wondered this for a long time... Why is it that when photographing a red laser's beam, a series of fingerprint-like halos are visible around the aperture? This is what I mean:
I don't think so.Those rings are not projected on the same background as the dot.They're always perpendicular to your view(or the camera's view). I still think it's a virtual image created on the lens.That or the beam is haunted or posesed, of course.....likewhat said:Or the beam is being clipped as it exits the laser so you get a bunch of rings from diffraction.
RA_pierce said:I don't think it is a dirty lens... My greens don't do that no matter how dirty the lens is. If you go on to Laserglow's customer photo gallery, their Orions do the same thing. Maybe red lasers are coherent poltergeists.
RA_pierce said:Oooooh.... Interference patterns... I remember a lesson on that while I was half-sleeping in physics class.
So why don't my green lasers do this?