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Old Jan 7, 2010, 11:07 AM   #1
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Default How to shoot photos with black light?

My daughter has a 4th grade science project due and it involves using a black light to show if things will glow or not. I am new at photography and would like to try and capture the items glowing under the black light. Any suggestions for settings on camera? I have a Canon Rebel XSI if that matters.
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Old Jan 7, 2010, 12:43 PM   #2
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While a Black Light gives off light that isn't visible (ultraviolet light), it causes some materials to fluoresce, which is visible light that a camera can record. However, those materials don't give off a lot of light, so be prepared for long shutter speeds. Use a tripod, manual focus, and prefocus on the thing you're testing, then turn off the conventional lights, turn on the Black Light, and take the shot.
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Old Jan 8, 2010, 9:34 AM   #3
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Good advice from TCav - esp about practicing.

I'd just add that you should figure out how to read the EXIF data that comes with each photo. Then you can see what f/stop,shutter speed, and ISO combination worked best without having to take notes as you shoot.
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