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-   -   CCD and laserlight (https://www.dvinfo.net/forum/sony-eng-efp-shoulder-mounts/115400-ccd-laserlight.html)

Eelco Romeijn February 21st, 2008 03:35 PM

CCD and laserlight
 
Hello Highdef experts,

I'm planning a studioshoot where a laserlight and a fogmachine will be the backdrop of a presenter. The laser might regularly point straight into the lens.

Do you think this could do any damage to the CCD's?

I hope not.

Eelco.

Tony Brennan February 21st, 2008 11:10 PM

Laser
 
I have been on a shoot where a Digibeta took a direct hit straight down the barrel and the CCD was ruined. Be very careful!

Eelco Romeijn February 22nd, 2008 02:31 AM

Quote:

Originally Posted by Tony Brennan (Post 830652)
I have been on a shoot where a Digibeta took a direct hit straight down the barrel and the CCD was ruined. Be very careful!

Thanks Tony,

After going through the operation manual i also found that this is a dangerous thing.
We'll skip the idea.

Eelco.

Mitchell Skurnik February 22nd, 2008 02:49 AM

I shot once infront of of a high powered laser designed for burning text or images into metal and other objects, I made sure there was a special piece of plastic that filters out any harmful light. The only problem with this is it is green (or what ever color the laser is). Yeah...lasers can really mess with your camera

Uli Mors February 22nd, 2008 08:20 AM

What about using a half-lucident mirror (like used in teleprompters) ?

Would that help?

Otherwise:

Get in contact with the laser company - perhaps there is a way to define a lower limit that the laser cant underrun - your safety area...

ULI

Eelco Romeijn February 22nd, 2008 08:56 AM

Quote:

Originally Posted by Uli Mors (Post 830812)
Get in contact with the laser company - perhaps there is a way to define a lower limit that the laser cant underrun - your safety area...

ULI

I did, the laser they use runs at 250 Milliwatt. It's a special device for shows and has much less power than a laser for medical or metal burning purposes.

You have to completely darken the room to see the laser. The effect is pretty cool, i've shot a short test and that looked great, especially in 25p due to the longer shuttertime.

Nothing damaged sofar, but I wouldn't take more risk, even with a glasscreen (or the ND of the cam itself).

Thanks for the advice!

Uli Mors February 23rd, 2008 07:58 AM

Hi

I also meant the vertical axis the laser is pogrammed to.

If they can provide a minimum height not to underrun, you´re much safer.

uli


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