Canon 45mm f/1.2 STM 45mm
The f/1.2 aperture delivers extremely shallow depth of field and strong low-light capturing ability in a weather-sealed 821g body, complemented by near-silent STM autofocus. A refined optical design suppresses chromatic aberration for consistent edge-to-edge sharpness, while the robust RF-mount construction includes a smooth manual focus ring for precise control. This lens suits portrait photographers needing dramatic subject isolation and videographers who depend on silent, accurate focus tracking.
Focal length 45mm
Aperture 1.2
Mount Canon RF
Weather Sealed Yes
Weight 821 g
af type STM
lens type prime
34 Overall Score
Price $515
Snapshot
Pros & Cons
Pros
- Strong aperture (99th percentile) 99th
- Strong bokeh (96th percentile) 96th
- Strong af (87th percentile) 87th
Cons
- Below average social proof (3th percentile)
- Below average macro (8th percentile)
- Below average optical (17th percentile)
- Below average build (19th percentile)
What owners think
The proof
Performance
Specifications
Full Specifications
Optics
| Type | prime |
| Focal Length Min | 45 |
| Focal Length Max | 45 |
Aperture
| Max Aperture | 1.2 |
| Min Aperture | 1.2 |
| Constant | Yes |
Build
| Mount | Canon RF |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.8 kg / 1.8 lbs |
AF & Stabilization
| AF Type | STM |
vs Competition
| Spec | Canon 45mm f/1.2 STM 45mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR Z 28-400mm f/4-8 VR | Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle | Panasonic LUMIX S S-R28200 |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 16-300mm | 18-300mm | 28-400mm | 13mm | 28-200mm |
| Max Aperture | 1.2 | f/3.5 | f/3.5 | f/4 | f/1.4 | f/4 |
| Mount | Canon RF | Sony E | Fuji X | Nikon Z | Sony E | L-Mount |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | true | true | false | true | false | true |
| Weight (g) | 821 | 615 | 92 | 726 | 415 | 413 |
| AF Type | STM | HLA | VXD linear motor | STM | STM | Autofocus |
| Lens Type | prime | zoom | zoom | zoom | Wide-Angle | macro |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon 45mm f/1.2 STM 45mm | 86.9 | 95.7 | 18.8 | 8.3 | 16.7 | 98.6 | 34.2 | 2.7 | 36 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.5 | 84.3 | 59 | 85.9 | 98.9 | 76.9 | 99.6 | 78 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.3 | 74.9 | 96.6 | 87.7 | 74.6 | 76.9 | 99.2 | 83.1 | 81.3 |
| Nikon NIKKOR Z 28-400mm f/4-8 VR Compare | 86.9 | 77.8 | 51.6 | 81.3 | 97 | 71.2 | 98.9 | 83.1 | 98.3 |
| Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle Compare | 86.9 | 96.6 | 42.1 | 89.4 | 82.6 | 96.4 | 34.2 | 74 | 81.3 |
| Panasonic LUMIX S S-R28200 Compare | 54.5 | 77.8 | 74.5 | 70.8 | 91.2 | 71.2 | 95.6 | 62.2 | 99.5 |
Price
Value & Pricing
From $515
Best Buy 1 offers From $515
May 19, 2026 $515
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
