I don't use UV filters.
With regards to UV filters, it's a long debated issue. Here are three pro viewpoints on the issue.
- Matt Granger talked about this today on Facebook.
2) Here's The Camera Store's own Chris Nichols discussing lens hoods.
- Lastly, here's a video from DigitalRev where they too discuss using a filter vs going without.
What's the final verdict? Don't waste your money on a UV filter. Instead, use a lens hood for protection.