Flames. Condoms. String cheese. Black lace panties. You guys came up with some really strange ideas for lens filters for last week's Shooting Challenge...but I'll hand it to you...many actually of worked.
Screwing expensive things into tiny threads is tedious—especially when you're a photographer depending on speed. So why bother screwing filters on when you can employ the mystical powers of magnets? Snap on, snap off—no more screwing, ever.