Canon Extender EF 1.4x III
Canon Extender EF 1.4x III is a teleconverter with 1.4x magnification for compatible Canon EF lenses. Introduced in 2010, it is designed to preserve image quality better than older extenders, with Canon’s updated optical design and improved anti-reflective coatings helping control flare and maintain contrast. It is especially useful for wildlife, sports and aviation shooters who need extra reach without carrying a longer lens, though as with any 1.4x converter it reduces maximum aperture by one stop and can make autofocus slower or less decisive in lower light. The build is robust, with weather sealing and a solid metal mount, and the rear element is shaped to match compatible telephoto lenses. Image stabilisation and autofocus functions depend on the attached lens, and performance is usually strongest with Canon’s telephoto primes and selected L-series zooms. Compared with the 2x version, it is the easier choice when you want to keep better sharpness and autofocus speed. On the used market, check that the mount is clean and unworn, the lens surfaces are free from haze, fungus and scratches, and that the contacts are bright and undamaged.
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Canon Extender EF 1.4x III Model Overview
Specifications
- Brand
- Canon
- Model
- Extender EF 1.4x III
- Release year
- 2010
Canon Extender EF 1.4x III is a teleconverter with 1.4x magnification for compatible Canon EF lenses. Introduced in 2010, it is designed to preserve image quality better than older extenders, with Canon’s updated optical design and improved anti-reflective coatings helping control flare and maintain contrast. It is especially useful for wildlife, sports and aviation shooters who need extra reach without carrying a longer lens, though as with any 1.4x converter it reduces maximum aperture by one stop and can make autofocus slower or less decisive in lower light. The build is robust, with weather sealing and a solid metal mount, and the rear element is shaped to match compatible telephoto lenses. Image stabilisation and autofocus functions depend on the attached lens, and performance is usually strongest with Canon’s telephoto primes and selected L-series zooms. Compared with the 2x version, it is the easier choice when you want to keep better sharpness and autofocus speed. On the used market, check that the mount is clean and unworn, the lens surfaces are free from haze, fungus and scratches, and that the contacts are bright and undamaged.
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Buying a used Canon Extender EF 1.4x III FAQs
No UK dealer tracked by SDS has a Canon Extender EF 1.4x III listed right now. Live prices appear on this page as soon as stock is listed.
You can compare used Canon Extender EF 1.4x III listings from verified UK dealers on SDS, then buy directly from the dealer you choose. SDS is a free comparison service: payment, delivery, warranty and returns are handled by the dealer.
Yes, when you buy your Canon Extender EF 1.4x III from a UK business. You are covered by the Consumer Rights Act 2015, so goods must be as described and of satisfactory quality, and most online purchases come with a 14-day right to cancel. Every dealer on SDS is a verified UK business.
Check each Canon Extender EF 1.4x III listing's condition notes, photos and included accessories. Confirm any faults or repairs, how long the warranty lasts and the returns terms. Condition grades vary between dealers, so read each dealer's grading guide.
It depends on the dealer. Warranty length and cover on a used Canon Extender EF 1.4x III are set by each dealer and shown on their website. Your statutory rights under the Consumer Rights Act apply whether or not a warranty is offered.
It varies by Canon Extender EF 1.4x III listing. Check the dealer's included-items list for essentials such as batteries, chargers, cables or caps, and whether they are original Canon parts. Product photos on SDS identify the model and do not show what a listing includes.
Each used Canon Extender EF 1.4x III differs in condition, accessories and warranty, and each dealer prices its own stock. Comparing listings side by side on SDS shows the difference before you buy.
Yes. Request a free Canon Extender EF 1.4x III quote on SDS to compare offers from verified UK dealers, with no obligation to accept. Offers to buy are usually lower than resale prices because dealers cover inspection, preparation and resale costs.
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