MicroPro®

I've tried a few other lens cleaners over the years, but this one feels more precise—the small tip wiggles right into the crevices of my action camera without smearing anything. It's compact enough to keep clipped to my bag, and the cleaning pad on the other end is a nice bonus for quick touch-ups.

The tip is tiny enough to actually reach into the recessed lenses on my security camera, which I’d given up on cleaning with a cloth. The retractable brush is a nice touch too, keeps the whole thing pocket-sized. It’s done the job for the macro lens on my phone as well, no streaks left behind.

I use this on tiny camera lenses that I could never get clean with a regular cloth, and the small tip actually reaches into the recessed glass without smudging. The retractable cap keeps the pad from drying out, which I didn't expect to matter this much.