Canon 17-40mm F4

Compatible with All Canon DSLR Formats
L-Series Lens - The Best Canon Makes
Super Wide Angle Zoom Lens
For Film or Digital SLR Cameras
Uses 3 Aspherical Lens Elements
Uses Super UD Glass
Water and Dust Resistant
Internal Zooming and Focusing
Circular Aperture Diaphragm
Accepts 77mm Filters