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 40mm f/2.8 STM Aperture Range: f/2.8-22 Aspherical Lens Element STM Stepping Motor for Smooth, Silent AF Lightweight & Compact: 4.6 oz, 1" Long Lens Coatings Reduce Ghost & Flare 7-Blade Circular Diaphragm Minimum Focus Distance: 11.81" 64mm Equivalent on APS-C Cameras STM Focus in Video on Select EOS Rebels 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 CategoryStandard PrimesLaunch Date6/12/2012Launch Year2012WeathersealingFilter Thread52Rear FilterDiameter (mm)68Length (mm)22Weight (g)130Min. Focal Length40Maximum Aperature2.80Min. Aperture22.00Min Focus Distance0.30No of Element Groups4No of Elements6Diaphragm Blades7Launch Price$199.00Amazonamzn.to/2gIoZqtCanon USAbit.ly/2idEfvOCanon USA Refurbishedbit.ly/2iffIq7B&H PhotoVideobit.ly/2ADSrGDAdoramabit.ly/2ADcCEX Please login or register to post comments.