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Trouble with laser @ a disco

E

erichfernandez

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on Monday we were shoting at a Disco with a green laser.
after a few reels we noticed some dust on the image. When we check
filters & lenses, we noticed some little points in the SENSOR.
any advice?
 

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Sorry, but no dust on the sensor

Sorry, but no dust on the sensor

we don't know what is that...
 
If you have a good magnifying device like a loupe or sensor cleaning kit, try to take a good look at the sensor. lasers can damage your sensor and/or potentially the OLPF. This may be something that needs to be repaired by RED. The second image especially does look like damage / burns to me. :-(
 
Wow! If that is laser damage, the light show is operating way outside the safety rules... consider what your retina would look like, if your eye was where the lens was. (Silicon is generally a lot more heat-resistant than live tissue).
 
lots of laser damage going on lately... you guys gotta be careful :)
 
jbeale said:
Wow! If that is laser damage, the light show is operating way outside the safety rules... consider what your retina would look like, if your eye was where the lens was. (Silicon is generally a lot more heat-resistant than live tissue).
Click to expand...

But most people don't have giant lenses focusing the laser beam onto their retinas.
 
It´s a damage sensor, just hade the same problem here, ooouuuhh expensive :-(
 
Like I said! OVF is from hell!!!

Just kiddin!

Hope you get your camera patched up soon!
 
Jarred Land said:
lots of laser damage going on lately... you guys gotta be careful :)
Click to expand...

Those purple dots scared the hell out of me.
I was wondering about that as well as we shoot many shows that include lasers. Never had that problem yet ( knock on wood), but is there a certain filter that would help protect the sensor that you know of from laser damage?
 
Vince K said:
Those purple dots scared the hell out of me.
I was wondering about that as well as we shoot many shows that include lasers. Never had that problem yet ( knock on wood), but is there a certain filter that would help protect the sensor that you know of from laser damage?
Click to expand...

I imagine a one way mirror over the matte box might help a bit- though this could give an odd effect to the footage.

Noah
 
Saw a broadcast camera on a Jimmy Jib have the CCD burnt by a laser. £6000 damage. No laser light should ever be allowed to shine directly into a lens...
 
I was just out on a 3D job, and we had the same thing happen. took it to red Europe and we where informed it was laser damage. laser did look cool 3D but with the risk to doing that to your sensor its seems a bad idea, and it was suffering from the rolling shutter effect like mad.

what i would like to know is can you get a filter that could stop this from happening?
or is there a any safe laser systems that can be used? also is there a laser system that wouldn't produce the rolling shutter effect?

but let this be a warning, if it can damage a chip think about how delicate you eye is!, now that's food for thought when you walk in to your next nightclub
 
This is scary stuff... anyone know what would be the best way of preventing such laser damage to the sensor?

What does a sensor replacement cost for a RED One?
 
Tom Mitchell said:
what i would like to know is can you get a filter that could stop this from happening?
Click to expand...

Sure, lens cap! :rolleyes:
Sorry couldn't resist, I know this is a serious issue and would like more info on it.
Is the issue only when looking at a direct or reflected laser, or are all lasers potentially dangerous, even if not looking directly at the source?
 
Sounds like it was Panic at the Disco. Sorry also couldn't resist. Something about lasers makes me giddy... :party:

Noah
 
ND filters should negate the laser light, but it also depends on the wavelength of the laser. You could also get some optical glass that is meant for the wavelength of lasers being used. Or go to the extreme and cut some welding glass. So then you can't see anything. Ha! While we're at it, a welding arc can also damage a camera too. Unfortunately, ND filters are not usually what you want in club environments or other places that are generally light-starved. It's just an issue of being careful with your camera when it's around lasers.

In most night club type situations, lasers should not be shining directly onto patrons or in directions where they may shine directly or reflect into someone's eyes. That said, I unfortunately see it happen quite a bit. Larger concerts and more controlled venues are usually a lot better about this as far as the audiences are concerned.

It's not a problem with RED, but can happen to any camera as has been pointed out in this thread. Film cameras too, but at least with film you would only scorch your negative unless it's a real powerful laser. I suppose if the laser is powerful enough it could do other damage.
 
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