Vivitar High Grade Multi-Coated Multi-Threaded UV (Skylight 1A) Filter (67mm) + Nwv Direct Microfiber Cleaning Cloth. (Alternative For Canon Part# 2598A003AA) Helps protect your valuable investment from dust, moisture and scratches, which can lead to unecessary repairs Titanium anodized finish Provides sharp contrast and well balanced color Reduces Excessive Blue Threaded mount