Richard CanonNews / Sunday, November 12, 2017 / Categories: Lens Catalog Canon EF 11-24mm f/4L USM Specifications for the Canon EF 11-24mm f/4L USM Lens Category and Release Details Lens Mount TypeEF Lens CategoryWideangle Zooms Launch DateFebruary, 2015 Initial Price$2,999.00 Lens Characteristics Diameter108mm Length132mm Weight1180g Filter Threadmm Rear Filter InstalledTrue WeathersealingTrue Focal Length11mm - 24mm Number of Elements / Groups16/11 Maxiumum Aperture4.00 Minumum Aperture22.00 Minumum Focal Distance0.28m Number of Diaphragm Blades9 Purchase Links for the Canon EF 11-24mm f/4L USM Canon USA Canon USA Refurbished Amazon B&H PhotoVideo Adorama Features Constant f/4 Maximum Aperture Super UD, UD, and 4 Aspherical Elements SWC, Air Sphere, and Fluorine Coatings Ring-Type USM Autofocus Motor Internal Focus; Full-Time Manual Focus Weather-Resistant Design Rounded 9-Blade Diaphragm Previous Article Canon EF 100-400mm f/4.5-5.6L IS II USM Next Article Canon EF 50mm f/1.8 STM Print 1548 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 Please login or register to post comments.