Richard CanonNews / Sunday, November 12, 2017 / Categories: Lens Catalog 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 Previous Article Canon EF 16-35mm f/4L IS USM Next Article Canon EF 180mm f/3.5L Macro USM Print 1807 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 Leave a comment Name: Please enter a name. Email: Please enter an email address. Please enter a valid email address. Comment: Please enter comment. I agree This form collects your name, email, IP address and content so that we can keep track of the comments placed on the website. For more info check our Privacy Policy and Terms Of Use where you will get more info on where, how and why we store your data. You must read and accept this rules. Add comment