Richard CanonNews / Sunday, November 12, 2017 / Categories: Lens Catalog Canon EF 400mm f/2.8L IS II USM Specifications for the Canon EF 400mm f/2.8L IS II USM Lens Category and Release Details Lens Mount TypeEF Lens CategorySuper-Telephoto Primes Launch DateAugust, 2010 Initial Price$9,999.00 Lens Characteristics Diameter163mm Length343mm Weight3850g Filter Threadmm Rear Filter InstalledFalse WeathersealingTrue Focal Length400mm Number of Elements / Groups16/12 Maxiumum Aperture2.80 Minumum Aperture32.00 Minumum Focal Distance2.70m Number of Diaphragm Blades9 Purchase Links for the Canon EF 400mm f/2.8L IS II USM Canon USA Canon USA Refurbished Amazon B&H PhotoVideo Adorama Aperture Range: f/2.8-32 Fluorite Optics for Sharper Images Three Mode Optical Image Stabilization Ultrasonic Autofocus Motor Manual Focus Override Power Focus Mode and Focus Preset Autofocus Stop Button Feature Dust & Moisture Proof & Fluorine Coating Security Slot for Wire-Type Locks Previous Article Canon EF 70-300mm f/4-5.6L IS USM Next Article Canon EF 300mm f/2.8L IS II USM Print 1816 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.