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-   -   Flourescent paint lit by blacklight (https://www.dvinfo.net/forum/jvc-gy-hd-series-camera-systems/498731-flourescent-paint-lit-blacklight.html)

Claude Mangold July 22nd, 2011 10:31 AM

Flourescent paint lit by blacklight
Hi all,
For a short documentary, I need to film some large objects covered with fluorescent paint and lit by black (UV) light - quite powerful UV spots.
What settings should we use ?

There obviously also is a lowlight issue, but circus lighting nearby gives a diffuse background lighting.
The setting is such that I cannot bring in any additional light - no electricity and no possibility to use a generator.

Did some scouting with my Mino Flip - the fluo paint & white clothing are very blue-violet.

Ray Bell July 24th, 2011 04:43 PM

Re: Flourescent paint lit by blacklight
These guys should be able to help you out...

Flashlights to Illuminate Green and Red Fluorescent Proteins

Jim Michael July 24th, 2011 06:29 PM

Re: Flourescent paint lit by blacklight
You probably want a Wratten 2A filter to block the UV from your sensor. As far as settings, the physical parameters you have at your disposal are aperture, shutter speed, and gain. Just remember the fluorescence is visible light, not UV.

Claude Mangold July 27th, 2011 03:36 PM

Re: Flourescent paint lit by blacklight
Thanks, I'll try out and report back.
The trick will be to keep the magic "glow" of the reflecting surfaces. Jim, you're right of course, it's visible light.
I wonder if combining a Wratten UV with a promist would yield a nice "glow".

Kennedy Maxwell July 28th, 2011 07:52 AM

Re: Flourescent paint lit by blacklight
Turn your camera on and look and see.

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