Canon RF 45mm f/1.2 STM Is a Fast All-Purpose Prime for Under $500
Nov 6, 2025
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Canon just added a new lens to its RF lineup, and even I, a Nikon shooter, got intrigued. The Canon RF 45mm f/1.2 STM features a fast aperture, versatile focal length, and a price tag that might raise eyebrows — in a good way. It’s a compact prime with serious low-light chops, lovely bokeh, and smooth autofocus, all for under $500.
[Related Reading: Canon R6 Mark III: 7K Video, 40fps, and a Bigger Sensor]
Big Bokeh in a Small Package
Canon’s new 45mm f/1.2 lens offers a unique blend of features that make it a solid option for both stills and video shooters. That ultra-wide f/1.2 aperture means you get beautiful subject isolation and soft background blur. It’s perfect for portraits, street photography, and low-light work. And unlike most f/1.2 lenses that can get pretty hefty, this one is refreshingly compact and lightweight.
It’s built for full-frame Canon RF-mount mirrorless cameras, but it won’t look oversized on your body (or your bank statement). Canon has managed to keep the size down without sacrificing image quality. One precision-molded aspherical element helps keep aberrations in check, ensuring sharpness even at wider apertures.


Quiet Autofocus, Thoughtful Design
The RF 45mm f/1.2 features an STM (stepping motor) autofocus system, which delivers smooth, quiet focusing performance. That’s a big plus if you’re shooting video or prefer to work discreetly. The lens also supports full-time manual focus override, so you can fine-tune your focus even when you use autofocus.
Canon RF 45mm f/1.2 STM Specs
| Feature | Details |
| Focal Length | 45mm |
| Aperture | f/1.2–f/16 |
| Lens Mount | Canon RF |
| Format Compatibility | Full-Frame |
| Angle of View | 51° 20′ |
| Minimum Focus Distance | 1.5 ft / 45 cm |
| Maximum Magnification | 0.13x |
| Optical Design | 9 elements in 7 groups |
| Diaphragm Blades | 9 |
| Autofocus | Yes, with STM motor |
| Image Stabilization | No |
| Filter Size | 67 mm |
| Dimensions | 78 x 75 mm |
| Weight | 346 g |
Pricing and Availability
The Canon RF 45mm f/1.2 STM is set to ship starting December 3 at the price of $469. Considering its fast aperture and solid optical specs, that’s a very approachable price for a lens in this class. Whether you’re a portrait photographer, street photographer, or just want a fast everyday prime, this one looks like a pretty compelling option.
Dunja Đuđić
Dunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, concerts, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.




































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