Richard @ CanonNews / Thursday, November 6, 2025 / 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 RF 45mm F1.2 STM Full-Frame | f/1.2 Maximum Aperture Compact, Lightweight Prime Lens STM Stepping AF Motor Customizable Control Ring Aspherical Element Reduces Aberrations 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 Print Tags: Canon RF 45mm F1.2 STM Lens MountRFLens CategoryStandard PrimesLaunch Date11/6/2025Launch Year2025WeathersealingFilter Thread67Rear FilterDiameter (mm)78Length (mm)75Weight (g)346Min. Focal Length45Max Focal Length45Maximum Aperature1.20Min. Aperture16.00Min Focus Distance0.45No of Element Groups7No of Elements9Diaphragm Blades9Launch Price$479.00Amazonamzn.to/48aY1lGB&H PhotoVideobhpho.to/3JUykwmMTF ImageElementsPress AnnouncementCanon Unveils New EOS R6 Mark III Hybrid Powerhouse Camera and Compact RF45mm F1.2 STM Lens MELVILLE, N.Y., November 6, 2025 — Canon U.S.A., Inc., a leader in digital imaging solutions, today announced the launch of the EOS R6 Mark III full-frame mirrorless camera and the RF45mm F1.2 STM lens. The EOS R6 Mark III camera builds on Canon’s renowned 5-series and 1-series legacy, delivering pro-level hybrid performance for advanced photographers, videographers, content creators, and hybrid enthusiasts shooting across portraits, events, wildlife, sports, and social media production. The RF45mm F1.2 STM lens introduces a compact, lightweight prime optic with outstanding f/1.2 performance, ideal for everyday shooting and creative expression. Canon RF45mm F1.2 STM Lens Designed to Redefine Compact f/1.2 Prime Performance The RF45mm F1.2 STM is a 45mm standard prime lens designed for natural perspectives close to human vision, with a wider angle than traditional 50mm options. It’s lightweight (approx. 346g) and compact build makes it easy to handle for portraits, snapshots, landscapes, and more-equivalent to approx. 72mm on APS-C bodies like the EOS R7 or R50 cameras. Key features include: Wide f/1.2 aperture enabled by innovative PMo aspherical lenses and gear-type STM with magnetic detection, reducing size and weight compared to larger f/1.2 lenses Rich, three-dimensional bokeh with nine aperture blades for smooth, circular blur; digital lens optimizer corrects distortions for outstanding rendering Fixed rear-lens focusing system minimizes image quality shifts across distances; aperture range (f/1.2 to f/16) allows flexible depth control, faster shutters, and low-ISO shooting Enhanced compactness via fixed-length barrel and minimum focusing distance, delivering value and reliability for diverse applications Availability The Canon EOS R6 Mark III camera body only and kits with either the Canon RF24-105 F4 L IS USM, the RF24-105 F4-7.1 IS STM USM lens, or the Stop Motion Animation Firmware are expected to be available in November 2025, for an estimated retail price of $2,799.00, $4,049.00, $3,149.00 and $2,899.00 respectively*. The RF45mm F1.2 STM lens is expected to be available in December 2025, for an estimated retail price of $469.99*. For more information about Canon’s latest innovations and products, please visit www.usa.canon.com. * Specifications, availability and prices are subject to change without notice. Please login or register to post comments.