Canon 1.4x EF Extender III
Mount Canon EF
Weather Sealed Yes
Weight 224 g
lens type super-telephoto
49 Overall Score
Price $479
Snapshot
Pros & Cons
Pros
- Strong build (90th percentile) 90th
- Strong aperture (67th percentile) 67th
- Strong bokeh (66th percentile) 66th
Cons
- Below average macro (14th percentile)
- Below average versatility (33rd percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Super-telephoto |
| Elements | 7 |
| Groups | 3 |
| Coating | Super Spectra coating |
Build
| Mount | Canon EF |
| Weather Sealed | Yes |
| Weight | 0.2 kg / 0.5 lbs |
Focus
| Max Magnification | 1.4x |
vs Competition
| Spec | Canon 1.4x EF Extender III | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sigma Contemporary 16-28mm f/2.8 DG DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Sony FE SEL2070G |
|---|---|---|---|---|---|---|
| Focal Length | - | 17-70mm | 17-28mm | 16-28mm | 12-60mm | 20-70mm |
| Max Aperture | - | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/4 |
| Mount | Canon EF | Fujifilm X | Nikon Z | Sony E | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | false |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 224 | 544 | 450 | 450 | 320 | 488 |
| AF Type | - | RXD | Stepping Motor | Stepping AF Motor | linear motor | Autofocus |
| Lens Type | super-telephoto | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon 1.4x EF Extender III | 53.7 | 65.6 | 89.6 | 13.6 | 38.5 | 67.1 | 33.3 | 53.1 | 37.8 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.7 | 87.4 | 69.6 | 85.9 | 91 | 84.6 | 89.3 | 85.1 | 83.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.4 | 87.4 | 75.9 | 85.9 | 88 | 84.6 | 67.3 | 68.8 | 37.8 |
| Sigma Contemporary 16-28mm f/2.8 DG DN Compare | 87.4 | 87.4 | 75.9 | 77.8 | 97.2 | 84.6 | 68 | 62.7 | 37.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98.1 | 87.4 | 84.6 | 51.9 | 91 | 84.6 | 93.1 | 67.8 | 83.4 |
| Sony FE SEL2070G Compare | 53.7 | 78.4 | 73.2 | 52.5 | 91 | 67.1 | 84.4 | 92.6 | 37.8 |
Price
Value & Pricing
From $479
Amazon 1 offer From $479
Newegg 1 offer From $480
We started tracking prices for this product on Jul 20, 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.
