Originally Posted by NicholasN
It is adviseable to use a UV [0] Filter in front of your lens to protect the lens from damage. Why spend $2,000 on a lens and risk damaging it.
It has been rumored that the following in fact is what Ben Franklin actually penned: "
They who can give up essential image quality to obtain a little temporary safety, deserve neither image quality nor safety."
None the less, I still keep a UV(0) filter attached most of the time.