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 20mm f/2.8 USM Aperture Range: f/2.8-22 Aspherical and Super UD Elements Ultrasonic Autofocus Motor Floating Rear Focusing System Manual Focus Override Metal Filter Ring and Lens Hood Mount Truly Circular Diaphragm Minimum Focus Distance: 9.8" 72mm Filter Thread Diameter 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 PrimesLaunch Date6/1/1992Launch Year1992WeathersealingFilter Thread77Rear FilterDiameter (mm)78Length (mm)71Weight (g)405Min. Focal Length20Maximum Aperature2.80Min. Aperture22.00Min Focus Distance0.25No of Element Groups9No of Elements11Diaphragm Blades6Launch Price$539.00Amazonamzn.to/2i9ZEWRCanon USAbit.ly/2idchQUCanon USA Refurbishedbit.ly/2id9dnRB&H PhotoVideobit.ly/2ADE3hAAdoramabit.ly/2ABfx0K Please login or register to post comments.