Richard CanonNews / Sunday, November 12, 2017 / Categories: Lens Catalog This post may contain affiliate links(s). An affiliate link means I may earn advertising/referral fees if you make a purchase through my link, without any additional cost to you. It helps to keep this site afloat. Thank you in advance for your support. If you like what we do here, maybe buy me a coffee. Canon EF 17-40mm USM Aperture Range: f/4-22 Three Aspherical Elements, One Super UD Ultrasonic Autofocus Motor Manual Focus Override Water and Dust Resistant Internal Zooming and Focusing Truly Circular Diaphragm 77mm Front Filter Diameter Rear Holder for Three Gel Filters Richard CanonNewsRichard CanonNews Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on infrared photography. Richard is the founder and editor of CanonNews since 2017, and has worked as a writer on CanonRumors and other websites in the past. Other posts by Richard CanonNews Contact author Facebook page Print Lens MountEFLens CategoryWideangle ZoomsLaunch Date2/27/2003Launch Year2003WeathersealingFilter Thread77Rear FilterDiameter (mm)84Length (mm)97Weight (g)500Min. Focal Length17Max Focal Length40Maximum Aperature4.00Min. Aperture22.00Min Focus Distance0.28No of Element Groups9No of Elements12Diaphragm Blades7Launch Price$799.00Amazonamzn.to/2iHUYLtCanon USAbit.ly/2ie4RNfCanon USA Refurbishedbit.ly/2ie51nPB&H PhotoVideobit.ly/2AF5uI6Adoramabit.ly/2AEbJMq Please login or register to post comments.