From Alice Abela, a wildlife biologist from Santa Barbara County:
"Can you remind me how you image the specimen (scorpion) under UV such that the background isn't also lit? i'm thankful, - Marshal
alice_abela commented:
You need a black light with a 365nm wave length to illuminate the subject then do a really low intensity flash. This was a 2 second exposure at ISO 500. I set the flash on manual and probably had it at around 1/32 or 1/64. I usually have to play a bit with the exposure duration, flash, and ISO to find the combination that works best for the shot and I kind of paint the subject with the flashlight during the exposure to get even illumination. Hope this helps! a black light with a 365nm wave length to illuminate the subject then do a really low intensity flash. This was a 2 second exposure at ISO 500. I set the flash on manual and probably had it at around 1/32 or 1/64. I usually have to play a bit with the exposure duration, flash, and ISO to find the combination that works best for the shot and I kind of paint the subject with the flashlight during the exposure to get even illumination. Hope this helps!
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RE; https://www.inaturalist.org/observations/9617335
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