Aren't you even curious to see if there is a performance difference? Shel
> [Original Message] > From: Kenneth Waller <[EMAIL PROTECTED]> > Jerome, I have a 600mm FA that uses 43mm filters. > I'm told that there needs to be a filter in that holder. > FWIW, I"ve never shot anything with out a filter there > so I can't tell you what the effect would be.
