Safeguard your lens and absorb UV light. Film and video are more sensitive to UV light than our eyes are. This often shows up as a bluish cast in images, especially shots from high altitudes and long distances, particularly over water. Ultra Violet filters are available in a variety of UV absorption levels.
Reviewed by 2 customers
no outside ring to hold lens cap
I use this product primarily to protect my lens. It is inexpensive, and if it gets scratched or broken it can be replaced quickly.[...] I will buy from them again.dp