Canon RF 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
Pros & Cons
Pros
- Strong aperture (99th percentile) 99th
- Strong bokeh (98th percentile) 98th
- Strong af (87th percentile) 87th
- Strong social proof (74th percentile) 74th
Cons
- Below average user sentiment (16th percentile)
- Below average macro (29th percentile)
- Below average versatility (34th percentile)
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 24 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 | No |
| 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 RF RF45mm F1.2 STM 45mm | Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Sony FE SEL2070G |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 18-140mm | 28-75mm | 10-18mm | 12-60mm | 20-70mm |
| Max Aperture | f/1.2 | f/3.5 | f/2.8 | f/2.8 | f/2.8 | f/4 |
| Mount | Canon RF | Nikon Z | Sony E | Sony E | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | false |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 345 | 315 | 540 | 260 | 320 | 488 |
| AF Type | STM | stepping motor | VXD | Autofocus | linear motor | Autofocus |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Canon RF RF45mm F1.2 STM 45mm | 86.9 | 97.7 | 68.3 | 28.7 | 51.6 | 98.5 | 15.8 | 33.6 | 74.1 | 37.9 |
| Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR Compare | 86.9 | 77.7 | 83.8 | 82.6 | 88.5 | 79.7 | 0 | 96.2 | 32.2 | 96.6 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88 | 67.2 | 87.3 | 87.8 | 85.6 | 80.4 | 78.2 | 83.3 | 37.9 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.4 | 87.1 | 93.3 | 81.5 | 85.6 | 80.4 | 69 | 69.2 | 37.9 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88 | 83 | 50.2 | 90.2 | 85.6 | 44.2 | 93.1 | 63.9 | 83.2 |
| Sony FE SEL2070G Compare | 54.6 | 80.1 | 70.9 | 50.9 | 93.1 | 69.8 | 63.3 | 84.2 | 91.7 | 37.9 |
Price
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
