Hi all, Recently on a photo website, likely APUG or photo.net - I don't recall = which, a poster made the declaration that placing filters on a 'high = quality' lens (in this case the reference was Rolleiflex Planars and = Xenotars) degraded the optics to the level of the filter, and thereby = nullifying the need for a 'quality' lens. The last point is clearly an = overstatement, esp. considering the source, but I was curious as to what = the actual facts might be. It seems there may be several factors to = consider, such as coatings and glass quality, but are there other = considerations, and what degree of impact might they have? As for = myself, I always use a lens hood when possible and more often than not a = yellow Hoya multi-coated filter when shooting. Thanks, Scott ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.