New
Canon Extender RF 1.4x
Aperture f/1.4
Mount Canon RF
Weather Sealed Yes
lens type telephoto
38 Overall Score
Price $560
Snapshot
Pros & Cons
Pros
- Strong aperture (96th percentile) 96th
- Strong bokeh (94th percentile) 94th
Cons
- Below average macro (14th percentile)
- Below average social proof (21st percentile)
- Below average optical (21st percentile)
- Below average versatility (34th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Telephoto |
Aperture
| Max Aperture | f/1.4 |
Build
| Mount | Canon RF |
| Weather Sealed | Yes |
Focus
| Max Magnification | 1.4x |
vs Competition
| Spec | Canon Extender RF 1.4x | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Sigma Contemporary 28-70mm f/2.8 DG DN | Nikon NIKKOR Z 17-28mm f/2.8 | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | - | 17-70mm | 28-70mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/1.4 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Canon RF | Sony E | Sony E | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | true | true | true | true | true | false |
| Weight (g) | - | 544 | 470 | 450 | 306 | 326 |
| AF Type | - | RXD | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | telephoto | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon Extender RF 1.4x | 53.6 | 93.5 | 61.9 | 14.2 | 20.9 | 96.2 | 33.8 | 20.6 | 36.8 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.6 | 85.8 | 69.4 | 85.1 | 91.3 | 82.6 | 89.6 | 86.2 | 82.6 |
| Sigma Contemporary 28-70mm f/2.8 DG DN Compare | 87.2 | 85.8 | 74.5 | 95.1 | 95.6 | 82.6 | 77.5 | 86.2 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.2 | 85.8 | 76 | 85.1 | 88.4 | 82.6 | 68.3 | 71.5 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.6 | 80.5 | 86 | 50.8 | 86.7 | 82.6 | 80.6 | 86.2 | 97 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98.1 | 73.8 | 73.2 | 40.3 | 78.9 | 75.8 | 95.9 | 90.3 | 82.6 |
Price
Value & Pricing
From $560
Newegg 1 offer From $560
We started tracking prices for this product on Oct 7, 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.
