Flourescent paint lit by blacklight at DVinfo.net

Claude Mangold · July 22nd, 2011, 10:31 AM

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

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

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

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

Turn your camera on and look and see.

July 22nd, 2011, 10:31 AM	#1
Claude Mangold Major Player Join Date: Dec 2006 Location: Berlin and Geneva Posts: 259	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.

July 24th, 2011, 04:43 PM	#2
Ray Bell Regular Crew Join Date: Nov 2004 Posts: 1,414	Re: Flourescent paint lit by blacklight These guys should be able to help you out... Flashlights to Illuminate Green and Red Fluorescent Proteins

July 24th, 2011, 06:29 PM	#3
Jim Michael Major Player Join Date: Dec 2005 Posts: 895	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.

July 27th, 2011, 03:36 PM	#4
Claude Mangold Major Player Join Date: Dec 2006 Location: Berlin and Geneva Posts: 259	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".

July 28th, 2011, 07:52 AM	#5
Kennedy Maxwell Regular Crew Join Date: May 2007 Location: Maryville, Tennessee Posts: 65	Re: Flourescent paint lit by blacklight Turn your camera on and look and see. __________________ Ken