210514 by sudweeks

210514

Ultraviolet fluorescence
Do you "just" shine a UV light and take a photo?? Of course not- so what's the secret??
October 17th, 2021  
@30pics4jackiesdiamond - Yeah, pretty much just shine a UV light and take a picture...

To get the best results, you'll want to reduce the amount of visible light as much as you can. The first thing you want is a good 365nm UV flashlight, I also added a UV bandpass filter to the end my flashlight, to further limit the amount of light in the visible spectrum coming from the flashlight. I also shoot at night in a dark room. I set the camera on a tripod, and usually do a 20 - 30 second exposure at around f8, ISO 400 or so, but that will all depend on how much fluorescence your subject give off, and how powerful your UV light source is. During the exposure, I shine the light all over the subject at different angles. More light where you want it to be brighter, less light where you want it darker.

Be careful with with UV, it's very bad for your eyes. I always wear safety glasses that block UV, never look directly into the light, and keep the UV flashlight away from kids.
October 17th, 2021  
@sudweeks thanks Josh! So kind of you to take the time to advise me. Off to ebay in a minute!!
October 18th, 2021  
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