On Tue, 20 Oct 1998 17:17:34 -0700, gma wrote:
>Sean Quiriconi wrote:

>> Why would you not use a filter on a lense? Doesn't this protect the lense
>> from being damaged. For example using a UV filter...
>>
>> Please elaborate...

>Because any filter will degrade the lens' performance to
>some degree in sharpness, flare or more.

Ummm, while theoretically true, in practice it is rarely
possible to see it, with any decent-quality filter.
The protection offered the lens glass by the filter is
worth far more to me than the essentially never-experienced
image degradation from using the filter. A $10 filter
can very well protect-but-not-degrade a $1000 lens...