UV light and skittish birds.

Mack

Mu-43 All-Pro
Joined
Jan 14, 2018
Messages
1,624
I've noticed on some days I can get really close to birds and some will fly up near me. Other days I cannot get them to even approach me and they stayed perched in the trees hiding.

I was researching some wind-proof double-canopy umbrella for outdoor reflector use and found it has UV brighteners that make the flash much bluer than I'd like. A UV black-light made the white umbrella glow. Not good.

Aside, I learned that birds can see down into the UV range and some clothing, if not most even washed in Tide, have UV brightners in them. So that makes you look like a giant threat to the bird. Some hunters use a product called U-V Killer by Atsko ( https://www.amazon.com/Atsko-Sno-Seal-Killer-18-Fluid-Trigger/dp/B003GW7HMI ) to keep deer and birds from becoming alarmed by their presence.

More info on it here: https://cleanitguide.com/how-to-remove-optical-brighteners-from-clothes/

So I'm off to buy some to treat this glowing UV umbrella. My old photographic umbrellas always blew over in desert wind so hopefully the dual-canopy and slot will allow some airflow through them and not bend light-stands up or cause stuff to go airborne.
 
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