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 f/1.2
Mount Canon RF
Weather Sealed Yes
Weight 821 g
af type STM
lens type prime
33 Overall Score
Price $515
Snapshot
Pros & Cons
Pros
- Strong aperture (99th percentile) 99th
- Strong bokeh (96th percentile) 96th
- Strong af (86th percentile) 86th
Cons
- Below average social proof (3rd percentile)
- Below average macro (8th percentile)
- Below average optical (15th percentile)
- Below average build (19th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 45 |
| Focal Length Max | 45 |
Aperture
| Max Aperture | f/1.2 |
| Min Aperture | f/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 | Panasonic LUMIX S S-R28200 | Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR | Meike 50mm F1.8 Full Frame STM Auto Focus Prime |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 16-300mm | 18-300mm | 28-200mm | 16-85mm | 50mm |
| Max Aperture | f/1.2 | f/3.5 | f/3.5 | f/4 | f/3.5 | f/1.8 |
| Mount | Canon RF | Sony E | Fujifilm X | L-Mount | Nikon F | Panasonic Sigma L |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | true | true | false | true | false | false |
| Weight (g) | 821 | 615 | 92 | 413 | 59 | 297 |
| AF Type | STM | HLA | VXD linear motor | Autofocus | AF-S | STM |
| Lens Type | prime | zoom | zoom | macro | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon 45mm f/1.2 STM 45mm | 85.5 | 95.6 | 18.5 | 7.9 | 15.1 | 98.5 | 34 | 2.8 | 35.6 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.8 | 84.3 | 57.8 | 86.6 | 98.8 | 77 | 99.6 | 82.9 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.1 | 75.1 | 96.3 | 88.5 | 73.5 | 77 | 99.2 | 82.9 | 80.5 |
| Panasonic LUMIX S S-R28200 Compare | 54.8 | 77.9 | 73.8 | 89.5 | 90.9 | 71.5 | 95.7 | 75.3 | 99.4 |
| Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR Compare | 54.8 | 75.1 | 98.4 | 59.8 | 64.1 | 77 | 94.3 | 87.9 | 92.2 |
| Meike 50mm F1.8 Full Frame STM Auto Focus Prime Compare | 85.5 | 95.9 | 71.2 | 96.1 | 57.2 | 93 | 34 | 52.4 | 80.5 |
Price
Value & Pricing
From $515
Best Buy 1 offer From $515
We started tracking prices for this product on May 19, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
