Canon RF45mm F1.2 STM 45mm
The f/1.2 maximum aperture delivers exceptionally shallow depth of field and strong low-light performance in a compact 345g body, enabled by Canon’s first PMo aspheric lens in this design. Its natural 45mm perspective pairs with a customizable control ring and smooth STM autofocus, offering an affordable entry to ultra-fast RF glass. This lens is best for portrait and lifestyle photographers who want dramatic bokeh and a natural field of view without the bulk or cost of larger f/1.2 primes.
Snapshot
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 22 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 45 |
| Focal Length Max | 45 |
| Elements | 9 |
| Groups | 7 |
| Aspherical Elements | 1 |
| Coating | SSC (Super Spectra Coating) |
Aperture
| Max Aperture | f/1.2 |
| Min Aperture | f/1.2 |
| Constant | No |
| Diaphragm Blades | 9 |
Build
| Mount | Canon RF |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.3 kg / 0.8 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | STM |
| Stabilization | No |
Focus
| Min Focus Distance | 450 |
| Max Magnification | 0.13x |
vs Competition
| Spec | Canon RF45mm F1.2 STM 45mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Nikon NIKKOR Z 17-28mm f/2.8 | Sony E PZ 16-50mm f/3.5-5.6 OSS | Panasonic LUMIX S S-E100 |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 28-300mm | 18-50mm | 17-28mm | 16-50mm | 100mm |
| Max Aperture | f/1.2 | f/4 | f/2.8 | f/2.8 | f/3.5 | f/2.8 |
| Mount | Canon RF | Sony E | Sony E | Nikon Z | Sony E | L-Mount |
| Stabilization | false | true | false | false | true | false |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 345 | 590 | 290 | 450 | 107 | 298 |
| AF Type | STM | VXD linear motor | stepping motor | Stepping Motor | Autofocus | Dual phase linear motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | macro |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Canon RF45mm F1.2 STM 45mm | 86.9 | 97.6 | 82.8 | 33.1 | 55.7 | 98.6 | 16 | 33.6 | 81 | 36.8 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 78 | 65.2 | 85.8 | 96.7 | 66.1 | 91.2 | 97.7 | 55.5 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.9 | 81.9 | 86.1 | 91.7 | 82.2 | 84.1 | 80.9 | 78.6 | 89.7 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.9 | 87.1 | 75.2 | 85.8 | 88.2 | 84.1 | 91.2 | 68 | 69.4 | 36.8 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS Compare | 53.9 | 75.5 | 98.5 | 43.9 | 68.3 | 77.5 | 63.7 | 83.3 | 81 | 93.3 |
| Panasonic LUMIX S S-E100 Compare | 98 | 87.1 | 85.8 | 82 | 83.4 | 84.1 | 80.9 | 33.6 | 65.3 | 36.8 |
Price
Value & Pricing
Amazon.com.mx 1 offer From MX$10,499
We started tracking prices for this product on May 25, 2026. The chart appears once we have more data.
