Name: Canon EF Extender 2X III Teleconverter
Brand: Canon
SKU: UCE-10-9970-2 7400002920
Price: 316.41 USD
Availability: InStock

Flawless appearance with no cosmetic blemishes. Fully operational and includes all items shown in the listing photos. The actual item for sale is pictured unless specifically noted otherwise. The condition rating applies to the core item and not any accessories.

Extend your reach with the Canon EF Extender 2X III—ideal for wildlife and sports, adding versatility to your kit. Shop now!

The Canon EF Extender 2X III is a high-performance teleconverter designed to double the focal length of compatible Canon EF lenses. It features advanced optics and coatings to maintain image quality and minimize aberrations, making it ideal for wildlife and sports photography.

Doubles the effective focal length of compatible Canon EF lenses, extending your reach for distant subjects.

2x Magnification

Incorporates 9 elements in 5 groups, including one fluorite and one UD lens element, to reduce chromatic aberrations and maintain image quality.

Advanced Optical Design

Built to Canon's professional standards, with dust and water resistance for reliable performance in challenging conditions.

Weather-Sealed Construction

Features a built-in microcomputer for enhanced communication between the lens and camera body, ensuring accurate autofocus and metering.

Improved Communication

The Canon EF Extender 2X III Teleconverter is built around the **Canon EF** lens mount, making it a native fit for photographers working within the Canon EF ecosystem. The single confirmed specification for this product is its **Canon EF** mount compatibility, which means it interfaces directly with Canon EF mount lenses on the lens side. For Canon EF system shooters looking to extend the capabilities of their existing glass, this teleconverter slots into the familiar EF mount system without the need for additional adapters. As with any teleconverter, buyers should verify that their specific Canon EF lenses are compatible with extenders prior to purchase, since compatibility can vary across the EF lens lineup. The Canon EF mount has been a cornerstone of Canon's DSLR ecosystem, and this extender is designed specifically for use within that established system.

Doubles the focal length of compatible Canon EF lenses, effectively extending reach without purchasing an additional lens.

2x Magnification Factor

Fits between Canon EF mount lenses and EF-compatible camera bodies, integrating seamlessly into existing Canon EF systems.

Canon EF Mount

The Mark III version offers improved optical performance and autofocus communication over earlier extender generations.

Third-Generation Design

Optical construction includes specialized glass elements to minimize chromatic aberration introduced by the magnification.

Fluorite & UD Elements

Maintains electronic communication between lens and camera body, preserving autofocus functionality on compatible lenses.

Autofocus Support

The 2x multiplication reduces the maximum aperture by 2 stops — an f/2.8 lens becomes f/5.6 — which buyers should factor in for lower light use.

Two-Stop Aperture Reduction

Includes sealing to help protect against dust and moisture when paired with similarly sealed lenses and bodies.

Weather-Resistant Construction

Compatible with select Canon L-series telephoto and super-telephoto lenses — buyers should verify compatibility with their specific glass before purchase.

Limited Lens Compatibility

User Manual

Canon EF Extender 2X III Teleconverter

Canon 100-400 vs 70-200 with a 2X Teleconverter

ARE EXTENDERS WORTH IT?  Find out from someone who's taken 500K images with them!

Teleconverters | MUST-HAVE or WASTE of MONEY? Are you better off cropping?

The Canon EF Extender 2X III Teleconverter is a useful accessory for photographers who want to increase their lens reach while maintaining a compact kit. This like new teleconverter is ideal for wildlife, sports, and distant subjects, offering extra versatility when you need more focal length without carrying another lens. Key Features<ul><li>2X Reach Extension: Doubles the effective focal length of compatible Canon EF lenses.</li><li>Compact Add-On: A lightweight solution for extending your shooting range without adding bulk.</li><li>Canon EF Compatibility: Designed for use with select Canon EF mount lenses and camera bodies.</li><li>Versatile Application: Well suited for outdoor, action, and telephoto work where added reach matters.</li><li>Like New Condition: Carefully maintained and ready to join your existing kit.</li></ul> Add the Canon EF Extender 2X III Teleconverter to your setup and enjoy more flexibility when you need to get closer to the action.

Continental U.S.

<h3 class="text-[1.5rem] font-semibold">100% Refund Guarantee for Lost, Damaged, or Misrepresented Items</h3>
At GearFocus, we're dedicated to providing a secure and reliable marketplace for creatives. Our buyer protection policy ensures peace of mind, safeguarding your purchases from unforeseen issues.
&nbsp;
<h3 class="text-[1.5rem] font-semibold">How It Works:</h3>
Follow These Steps:
<ol class="text-[1.3rem]">
<li>Contact the Seller: If there's an issue, contact the seller within 48 hours of delivery. Many problems can be resolved directly through their return policy. Be sure to provide clear photos or videos when messaging the seller.</li>
<li>Contact GearFocus: If the seller hasn&rsquo;t responded within 24 hours, email us at&nbsp;<a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener noreferrer">support@gearfocus.com</a> with supporting documentation (photos, repair estimates, etc.).</li>
<li>We&rsquo;ll Take It from There: GearFocus will step in, review the situation, and collaborate with the seller. We&rsquo;ll notify you if additional details are needed to process your refund.</li>
</ol>
&nbsp;
<h3 class="text-[1.5rem] font-semibold">What&rsquo;s Covered?</h3>
To be covered, orders must be completed directly through GearFocus (including payment and shipment records) and issues reported within 48 hours of delivery or within 14 days of the expected delivery date if undelivered.
You qualify for a refund if your item is:
<ul class="text-[1.3rem]">
<li>Lost by the carrier</li>
<li>Damaged during shipping</li>
<li>Significantly different from the listing description or photos</li>
<li>Not delivered within 10 days of the expected arrival date</li>
</ul>
&nbsp;
<h3 class="text-[1.5rem] font-semibold">Seller Return Policies &ndash; Know Before You Buy</h3>
Sellers on GearFocus follow one return policy per listing, clearly outlined in the item description. Buyers are encouraged to&nbsp;review the return policy carefully before purchasing.
&nbsp;
<h3 class="text-[1.5rem] font-semibold">Return Policies Include:</h3>
<ul class="text-[1.3rem]">
<li>48-Hour Verification Period (For Verified Sellers): Buyers have 48 hours to inspect the item upon delivery. If discrepancies are found, the seller covers return shipping. (Excludes "As-Is" and "Poor" condition items)</li>
<li>14-Day No Questions Asked Return: Some approved sellers allow returns for any reason within 14 days. Buyers cover return shipping and seller fees.&nbsp;(Excludes items classified as "Poor" or "As-Is" , and Drones)</li>
</ul>
&nbsp;
Important: Return policies are set by the seller at the time of listing. Buyers cannot request to switch policies after purchase.
&nbsp;
<h3 class="text-[1.5rem] font-semibold">Exceptional Cases &ndash; Returns Outside the Seller&rsquo;s Policy</h3>
Occasionally, a seller may offer to accept a return outside of their stated policy. When this occurs:
<ul class="text-[1.3rem]">
<li>Both the buyer and seller must contact GearFocus Support at <a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener noreferrer">support@gearfocus.com</a> or message us on <a class="text-brand-secondary hover:text-brand-primary" href="gearfocus.com" target="_blank" rel="noopener noreferrer">gearfocus.com</a>.</li>
<li>GearFocus will mediate and help negotiate responsibility for transaction fees and shipping.</li>
<li>Our goal is to achieve a fair resolution for both parties.</li>
</ul>
&nbsp;
<h3 class="text-[1.5rem] font-semibold">What Isn&rsquo;t Covered?</h3>
<ul class="text-[1.3rem]">
<li>Claims made after 48 hours of delivery (or 10 days for non-delivery)</li>
<li>Off-platform transactions</li>
<li>Buyer's remorse or returns outside of the seller&rsquo;s policy</li>
<li>Forwarded or re-shipped packages</li>
</ul>
&nbsp;
Questions? Contact us at <a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener">support@gearfocus.com</a>.
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At GearFocus, we&rsquo;re committed to building trust and ensuring a smooth experience for all creatives, whether buying or selling.

Canon EF Extender 2X III Teleconverter

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