Richard CanonNews / Thursday, September 6, 2018 / Categories: Lens Catalog Canon RF 28-70mm F2L USM Specifications for the Canon RF 28-70mm F2L USM Lens Category and Release Details Lens Mount TypeRF Lens CategoryStandard Zooms Launch DateSeptember, 2018 Initial Price$2,099.00 Lens Characteristics Diameter104mm Length140mm Weight1430g Filter Thread95mm Rear Filter InstalledFalse WeathersealingTrue Focal Length28mm - 70mm Number of Elements / Groups13/19 Maxiumum Aperture2.00 Minumum Aperture22.00 Minumum Focal Distance0.39m Number of Diaphragm Blades9 Purchase Links for the Canon RF 28-70mm F2L USM B&H PhotoVideo Adorama MTF Plot of the Canon RF 28-70mm F2L USM Lens Construction Diagram of Canon RF 28-70mm F2L USM RF-Mount Lens/Full-Frame Format Aperture Range: f/2 to f/22 Ultra-Low Dispersion Elements Ring-Type Ultrasonic Motor AF System Customizable Control Ring Rounded 9-Blade Diaphragm Previous Article Canon RF 50mm F1.2L USM Next Article Canon RF 85mm 1.2L USM Print 1499 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.