RFL-UV

The multi-coated glass is crystal clear—no color cast that I can notice, even shooting into bright skies. Screws on smooth and the ring is thin enough to keep my wide-angle lens hood working.

Finally got one of these after dropping my old filter and cracking it. The multi-coating is noticeably clearer than my previous cheap one, and it screwed on perfectly smooth. Easy peace of mind for everyday shooting.

Screwed this onto my 50mm before a beach trip and after a week of salt spray and sand, the glass still looks brand new. The multi-coating doesn't seem to affect image quality at all, no extra flare in my shots. For the peace of mind alone, it's worth keeping on permanently.