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Key Features
- RF-Mount Teleconverter
- 1.4x Magnification Factor
- Maintains Metering, Autofocus, and IS
- Dust and Water Resistant
Extend the reach of select Canon RF-mount lenses with the Extender RF 1.4x. This teleconverter magnifies the image by 1.4x and retains full communication between the lens and camera body, enabling metering, autofocus, and image stabilization as well as the transmission of Exif data. Additionally, the Extender RF is dust and water resistant and has a heat shield exterior to ensure optimal performance in a range of conditions.
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Will the 1.4x extender work fully with the new RF ...
Will the 1.4x extender work fully with the new RF 100-400 lens and what will be the f-stop?
Yes, 100% the teleconverter will mount to the lens.
Date published: 2022-12-13
Can the 1.4x teleconverter be used with the new ...
Can the 1.4x teleconverter be used with the new RF 100 mm f/2.8 macro lens?
No, it can not be used with a RF 100 mm f/2.8 macro lens. These RF converters only work for focal lengths 300 mm and above.
Date published: 2022-02-27
will this extender work with an ef to rf adapter?
will this extender work with an ef to rf adapter?
No, the RF extenders do not work with the EF-RF adapter. The EF-RF adapter doesn't fit over the RF 1.4 or 2.0x teleconverters/extenders. The only way to use a teleconverter with the EF-RF adapters is to use an EF-teleconverter. If you need further clarification or proof, please reach out to our video-chat team and we will be happy to assuage your concerns!
Date published: 2022-07-03
When using rf 100-500 and 1.4x converter, is ...
When using rf 100-500 and 1.4x converter, is there any chance of the 1.4x converter touching the back glass of the 100-500 lens (whether when attaching or zooning)?
Yes there is a chance that this extender can touch the rear element, therefore it can only be used within the 300-500mm range on the RF 100-500mm lens.
Date published: 2020-12-14
Rf 100-400
Rf 100-400
Yes.
Date published: 2021-12-08
RF 100-500mm f/4.5-7.1L IS USM (can only be used ...
RF 100-500mm f/4.5-7.1L IS USM (can only be used within 300-500mm range). What does 300-500 range mean? So while on my New R5 (on order) what happens between the 100-300 portion of the zoom?
You also have to extend the lens to 300mm in order to attach the teleconverter.
Date published: 2025-08-03
Can this be used with the new RF 100-400?
Can this be used with the new RF 100-400?
Yes it is Compatible with the RF 100-400 lens also the RF 2.0x can be used to.
Date published: 2022-12-13
Does this Canon Extender RF 1.4x give us a better ...
Does this Canon Extender RF 1.4x give us a better image than the EF 1.4x? Is this compatible with the 100-400mm 100-400mm f/4.5-5.6L IS II USM Lens or the RF 100-500mm f/4.5-7.1 L IS USM Lens?
The RF extender is made specifically for the RF 100-500mm lens, and the new super-telephoto lenses. When it comes down to image quality, it is suited specifically to get the most out of the RF lenses.
It is not compatible with the EF 100-400mm or any EF lens for that matter.
Date published: 2021-04-17