Vivitar 46mm Multicoated UV Protective Filter

I've been using this filter as a permanent lens protector, and it's nice that the multicoated glass doesn't seem to affect image sharpness at all. The slim metal ring also allows my lens cap to fit on without any problem.

Finally got one of these for each of my lenses—the threads are buttery smooth to screw on, and I love that I can just wipe smudges off the glass without worrying about scratching the actual lens.

This filter sits perfectly on my lens and gives me peace of mind against dust and fingerprints. The multicoating keeps reflections down, so my photos come out clear and sharp without any extra haze.