In article <32DF821C.2A24@cts.com>, opt@cts.com says...

>Any lens manufacturer will agree that a UV or Sky filter is a great
>idea, but if you want the sharpest photo's to remove the filter.
>I own many a Hoya and Nikkor Filter, but they all come off when the
>money photo show's up.

That's up to you, but careful checking (with long, fast teles [which
are the most filter-quality sensitive]) has shown me that good
UV filters (like Hoya or Nikon) do not affect image quality in any
way (positively, or negatively...;-).
Hope This Helps