The 82mm Carl Zeiss T* UV Filter from Zeiss is more than a wise initial investment. It is the standard UV filter most people are familiar with but is designed to match the high-quality of Zeiss lenses. It will also help protect your valuable investment from dust, moisture and scratches, which can lead to costly repairs. It also protects the front of your cameras front element of your lens from accidental damage. this filter is available from Outdoorphoto.