Any readers have any experience or feedback with Cat Crap lens cleaner & defogger? Picked this up a little while ago but have been too busy to mess with it.
Truth be told I am in and out of vehicles and buildings so much, once could assume fogging is a problem. But so far I haven’t really experienced it to a level that would degrade my shooting.

Am I whistling past the graveyard and need to use this? Or is it just a way to get money out of people? Those who use it, do you wipe it on and off? Or do you leave it on?
This was delivered with no instructions.
Sincerely,
Marky
www.John1911.com
“Shooting Guns & Having Fun”
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