Laser Damage on EX3 Sensor

N

Nick Navaro

Well-known member
Hello

I now have permanent white lines on the image. What is this? How did this happen?

Nick
 
Last edited:
I can't help your problem but I want to note that audience scanning lasers are
set such that the pupil of an eye (diameter ~5mm) sized aperture will not cause damage
to the average retina. You do not want to look at an audience scanning laser
with a telescope or binoculars that gives you a larger effective entrance pupil.

If you use a camera that has a huge pupil (EX3 at f/1.9 and medium zoom
40mm has a pupil diameter of 20mm) that amount of energy you are collecting
is much more than the amount being focused on the eye and it can damage
a cmos detector as you have observed.

Also, audience scanning lasers are nearly prohibited in the U.S.A. and when they
are allowed the power levels are extremely low by European standards. Over
in Western Europe they allow significantly higher powers. In Eastern Europe and
the rest of the world, audience scanning lasers generally are not regulated (to my
knowledge) so the sky is the limit.

If you are going to videotape audience scanning lasers, one should do it in
the U.S.A. with a laser system that is properly licensed OR if you are outside
the U.S.A. you need to learn radiometry and do the math out long hand to your
satisfaction. Your local radiation health physicist will be able to assist you with
the math. You can find them at large hospitals, sometimes and they will love
to talk to you. Most of them are bored since nobody cares about radiation health
physics unless they actually get injured by radiation.
 
Your best bet is to contact your insurance and Sony UK/Europe directly. I don't think any of us can help you any further.
 
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