Canon Extender RF 1.4x

BH #CA14XRF • MFR #4113C002
Canon Extender RF 1.4x
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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Canon RF Extender 1.4x Overview

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.

Lens Compatibility

  • RF 100-500mm f/4.5-7.1L IS USM (can only be used within 300-500mm range)
  • RF 600mm f/11 IS STM
  • RF 800mm f/11 IS STM
  • RF 600mm f/4L IS USM
UPC: 013803330465

Canon RF Extender 1.4x Specs

MountCanon RF
Magnification1.4x
Light Loss1 Stop
Length0.8" / 20.32 mm
Diameter2.8" / 71.12 mm
Weight7.9 oz / 224 g
Packaging Info
Package Weight1 lb
Box Dimensions (LxWxH)7 x 5 x 4.8"
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YOUR RECENTLY VIEWED ITEMS

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)?
Asked by: Michael
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.
Answered by: Kirk
Date published: 2020-12-14

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?
Asked by: Patrick
When you're using the RF 100-500mm f/4.5-7.1L IS USM with the teleconverter, it will not allow you to set the lens to anything less than 300mm in focal length due to the design of the teleconverter and rear internals of the lens. Basically, you won't be able to zoom wider than 300mm when using the teleconverter.
Answered by: Kevin
Date published: 2020-11-15

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?
Asked by: Brian
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.
Answered by: Kevin
Date published: 2021-04-17

Will this work (fit) with the EF/RF adapter ...

Will this work (fit) with the EF/RF adapter allowing it's use with EF telephotos?
Asked by: Phillip
This isn't answering the question you asked, but it may help. If you have the EF lens and the EF extender, you can add the EF/RF adapter and it works! (At least it does with my EF 100-400 L lens.) It adds 2 inches to the length of your lens, but really doesn't seem to affect the lens weight or feel, and other than losing a stop of light as expected, I haven't had issues with it.
Answered by: DOLORES
Date published: 2021-07-24

Can you stack the RF 1.4x and 2x extenders when ...

Can you stack the RF 1.4x and 2x extenders when using an extension tube (since the area protrudes) like you can with the EF ones? I realize the stops of light will be great with image degradation and will use manual focus, but can this be done? If this will work with an extension tube, what mm size would be needed? The RF 2x extender seems to protrude further out than the EF version. Thank you :)
Asked by: Joyce
According to Canon, though the two extenders may possibly be connected with each other and with extension tubes, Canon does not guarantee their functionality with this combination. We cannot guarantee whether or not this would work as it is not their intended design and use. Canon has only tested the extenders individually with lenses. It would be at your own risk if you were to try out this combination on your end, and due to this, Canon is unable to make any recommendations on which extension tubes to use.
Answered by: Manzell
Date published: 2020-09-21

Is the speed of the auto focus affected using ...

Is the speed of the auto focus affected using this extender on a 100-500 lens mounted on an R6?
Asked by: Jay
It's affected just a little bit, not much and it's not a game changer. The benefit of having 700mm reach out weights the little bit it slows done the Auto focus. In my opinion it's faster than the EF 100-400 ll with the EF 1.4 extender. The RF 100-500mm with the RF 1.4 extender and a R6 is a perfect match. You will not regret it trust me.
Answered by: Louis G
Date published: 2021-06-30

Which RF lenses can be used with this extender?

Which RF lenses can be used with this extender?
Asked by: Maurice
As far as I know, it can be used with the RF600, RF800, and RF100-500 (beyond 300m only). It cannot be used with the RF70-200f2.8 or RF70-200f4.
Answered by: Michael
Date published: 2021-07-26

Can this converter be used with the RF 24-240mm?

Can this converter be used with the RF 24-240mm?
Asked by: John
No, so far this converter only works with; RF 100-500mm f/4.5-7.1L IS USM (can only be used within 300-500mm range) RF 600mm f/11 IS STM RF 800mm f/11 IS STM
Answered by: Rob
Date published: 2020-08-05
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