Canon Extender RF 1.4x
The Canon RF 1.4x is a lens from Canon. Check GearFocus for current availability, with buyer protection on every purchase.
Canon Extender RF 1.4x
Get notified when one lists.
We'll text or email you the moment a Canon RF 1.4x is listed on GearFocus.
Have a Canon RF 1.4x sitting in your bag?
You'd be the first listing for this model.
Serious buyers are already watching — list yours in minutes.
Available Now on GearFocus
Lens Overview — Canon RF 1.4x
Key Features — Canon RF 1.4x
1.4x Focal Length Extension: Multiplies the effective focal length of compatible RF lenses by 1.4x, adding meaningful reach without purchasing an additional telephoto lens.
Autofocus Retained: Full electronic communication through the RF mount keeps autofocus operational, so photographers do not need to switch to manual focus when the extender is attached.
Canon RF Mount: Designed exclusively for the Canon RF mirrorless system, ensuring native compatibility with full-frame RF-mount bodies and supported lenses.
Full-Frame Coverage: Engineered to cover the full-frame image circle, making it suitable for Canon's full-frame RF mirrorless lineup without vignetting on compatible lenses.
1-Stop Light Reduction: A 1.4x teleconverter reduces the maximum aperture by one stop, a predictable tradeoff to account for when shooting in lower light.
Lightweight at 225g: At just 225g, the extender adds minimal weight to an existing lens and body combination, keeping the overall kit manageable for field use.
Lens Specifications — Canon RF 1.4x
| Spec | Detail |
|---|---|
| Lens Type | Other |
| Format | Full Frame |
| Zoom/Prime | Other |
| Camera System | Mirrorless |
| Lens Mount | Canon RF |
| Autofocus | Yes |
| Focus Type | Auto |
| Image Stabilization | None |
| Weight | 225g |
Description — Canon RF 1.4x
The Canon Extender RF 1.4x is built for Canon's RF mount mirrorless system, designed to work with compatible full-frame RF-mount lenses. One of its key practical advantages is that it preserves autofocus functionality — the specifications confirm auto focus support, meaning photographers don't have to sacrifice AF performance when adding reach to their setup. At 225g, the extender is light enough to be a low-impact addition to an existing lens and camera combination.
It is designed exclusively for the Canon RF mount, ensuring full electronic integration with compatible RF lenses and Canon mirrorless bodies. Image stabilization is not present in the extender itself, as the specifications indicate None for image stabilization. There is no filter thread on this unit.
For photographers shooting with Canon's RF mirrorless system who need additional focal length reach, this extender offers autofocus-compatible performance within a lightweight, RF-native package.
Pros — Canon RF 1.4x
- ✓Autofocus support maintained — the specifications confirm autoFocus is enabled, preserving AF functionality in compatible setups
- ✓Designed for full-frame format, ensuring compatibility with Canon's full-frame RF mirrorless system
- ✓Lightweight at just 225g, adding minimal weight to an existing lens configuration
Cons — Canon RF 1.4x
- ✗No image stabilization built into the extender itself, as explicitly noted in specifications
- ✗Compatible only with Canon RF mount lenses — not usable with EF or other mount systems without additional adapters
- ✗No filter thread, so front-of-extender filter attachment is not possible
Reviews — Canon RF 1.4x
Videos — Canon RF 1.4x
Canon RF 70-200 vs 100-500 review with 1.4x 2x EXTENDERS! — Gordon Laing