Richard CanonNews / Sunday, November 12, 2017 / Categories: Lens Catalog Canon EF 400mm f/5.6L USM Specifications for the Canon EF 400mm f/5.6L USM Lens Category and Release Details Lens Mount TypeEF Lens CategorySuper-Telephoto Primes Launch DateMay, 1993 Initial Price$1,349.00 Lens Characteristics Diameter90mm Length257mm Weight1250g Filter Thread77mm Rear Filter InstalledFalse WeathersealingTrue Focal Length400mm Number of Elements / Groups7/6 Maxiumum Aperture5.60 Minumum Aperture32.00 Minumum Focal Distance3.50m Number of Diaphragm Blades8 Purchase Links for the Canon EF 400mm f/5.6L USM Canon USA Canon USA Refurbished Amazon B&H PhotoVideo Adorama Aperture Range: f/5.6-32 Super UD and UD Glass Elements Ultrasonic Autofocus Motor Manual Focus Override Minimum Focus Distance: 11.5' Focusing Range Limiter Detachable Tripod Collar Built-in Lens Hood 77mm Filter Diameter Previous Article Canon EF 85mm f/1.8 USM Next Article Canon EF 50mm f/1.4 USM Print 1605 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.