Canon Extender RF 1.4x
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Product Description

Canon Extender RF 1.4x Compatible with: Canon RF 100-500mm F4.5-7.1 L IS USM Canon RF 600mm F11 IS STM Canon RF 800mm F11 IS STM More reach, no loss of image quality The extender features high-refraction, low-dispersion glass to control curvature of field and chromatic aberration of magnification... read more

Canon Extender RF 1.4x 

Compatible with:

  • Canon RF 100-500mm F4.5-7.1 L IS USM
  • Canon RF 600mm F11 IS STM
  • Canon RF 800mm F11 IS STM

More reach, no loss of image quality

The extender features high-refraction, low-dispersion glass to control curvature of field and chromatic aberration of magnification for the highest image quality. 

Advanced lens design

As well as optimised lens coatings, a 3-layer combined lens helps to reduce ghosting by reducing the surfaces in contact with the air as much as possible. 

Designed to perform in extremes

The exterior is coated in the same white heat shield coating as used on the RF 100-500mm F4.5-7.1L IS USM and RF 70-200mm lens to prevent deterioration in performance in high temperatures.

Seamless integration with RF 100-500mm F4.5-7.1L IS USM

A mechanism which limits the zooming of the RF 100-500mm F4.5-7.1L IS USM zoom range (300 to 500 mm) prevents the lens elements hitting those of the extender. 

No compromise construction

Designed for reliability and durability with vibrational shock resistance plus dust and water resistance for use by professionals and high-end amateurs.

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MPN: 4113C005

Barcode: 4549292168044

Canon Extender RF 1.4x Specification

Canon Extender RF 1.4x Specs

  • Mount: Canon RF
  • Magnification: 1.4x
  • Light Loss: 1 Stop
  • Length: 20.32 mm
  • Diameter: 71.12 mm
  • Weight: 224 g

What's in the Box?

  • Canon Extender RF 1.4x
  • Extender Cap RF
  • Dust Cap RF
  • Soft Pouch LP811

MPN: 4113C005

Barcode: 4549292168044

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Customer Reviews

By ShortTony on 1st May 2024
"Picture quality is very good but it is annoying that on my 100-500mm you cannot collapse the lens down to below the 300mm mark. This makes targeting the lens harder and makes stowing the camera a pain in a standard bag. "
Star Rating 4
By EddieRyan on 12th January 2024
"Completely satisfied "
Star Rating 5
By RobinSumsion on 23rd December 2023
"Very pleased with the extender, does what it says on the tin! Excellent service from Castle Cameras and cashback from Canon....."
Star Rating 5
By Paul on 15th April 2023
"The first thing you notice is how over packaged it is, the box is 3 times the height of the extender. You also need to check if it's compatible with the lenses you want to use with it, as, very surprisingly, it's not compatible with all RF lenses. Operationally, it seems to do the job quite well, at least for my amateur purposes. "
Star Rating 4
By FrankieSevern on 21st June 2022
"Works well, no loss of sharpness that I could see."
Star Rating 5
By Roger on 16th October 2021
"The 1.4 converter, being a Canon product, does not disappoint. I found my 600mm lens was getting too heavy for hand holding, so switched to the 100-500 lens + 1.4 T/c. So extra reach and great quality maintained. Castle Camera's staff are always very helpful and so friendly."
Star Rating 5
By Bob on 15th May 2021
"Service was good and communication spot on. The 1.4x extender does exactly what is expected without any noticeable degradation of image quality. If you need to get closer to your subject I would recommend the product. Only negative is the price... Too expensive in my view."
Star Rating 5

Canon Extender RF 1.4x

£579.00

in stock Good Stock

Two Year Canon UK warranty

+ ACCESSORIES
Zeiss lens wipes, x24
Zeiss lens wipes, x24
£5.00
Product Code: EG27164
Canon LP-E6NH High power battery
Canon LP-E6NH High power battery
£114.00
Product Code: EX27951
Lenspen Original offer
£11.90  £4.90

Product Summary

  • Extend your vision - The Extender RF 1.4x is the perfect choice for any photographer seeking more magnification from their RF lenses.  
  • Boosts focal length by 1.4x with the loss of just one f stop.  
  • Compatible with multiple telephoto lenses - 100-500mm, 600mm, 800mm & 200-800mm.  
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Upgrading? Check our offer for your old gear

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