Specificatoons: EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/32 Four Ultra-Low Dispersion Elements Super Spectra Coating Ring-Type Ultrasonic Motor AF System Internal Focus, Focus Range Limiter Weather-Sealed Construction Detachable, Rotatable Tripod Collar Rounded 8-Blade Diaphragm * message for check stock & price
EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to f/22 Four Aspherical Elements Air Sphere and Fluorine Coatings Ring-Type Ultrasonic Motor AF System Optical Image Stabilizer Weather-Sealed Construction Rounded 10-Blade Diaphragm * message for check stock & price