Archivos de diario de septiembre 2019

20 de septiembre de 2019

Photography With UV Light

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!

Ingresado el 20 de septiembre de 2019 por jwparker2 jwparker2 | 1 comentarios | Deja un comentario