Name: Canon Extender EF 1.4x II Teleconverter
Brand: Canon
Price: 179 USD
Availability: InStock

Exhibits minimal signs of wear, noticeable only upon close inspection. 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.

Works great. Very useful with telephoto lenses. This is the EF version. Glass is clean. Body has few if any paint wear. Comes with front and rear...read more.

The Canon Extender EF 1.4x II is a high-performance teleconverter designed to extend the focal length of compatible Canon EF lenses by 1.4 times. It maintains excellent image quality and autofocus capabilities, making it ideal for wildlife, sports, and birding photography.

Increases the effective focal length of compatible lenses by 1.4 times, providing greater reach for distant subjects.

1.4x Magnification

Constructed with precision optics to ensure minimal degradation in image quality.

High Optical Quality

Offers protection against dust and moisture when paired with compatible lenses and cameras.

Weather-Sealed Design

The Canon Extender EF 1.4x II is a **Canon EF mount** teleconverter built for **DSLR** camera systems with **full frame** sensor coverage. It operates in the **telephoto focal length range** and supports both **Auto and Manual focus**, giving photographers flexibility in how they operate their autofocus system when the extender is in use. Weighing **220g**, it is a compact and manageable addition to a telephoto lens kit. The extender carries **no image stabilization** of its own, which is standard for accessories of this type. With its **Canon EF** lens mount, it is purpose-built to integrate with Canon's EF lens lineup on compatible DSLR bodies, making it a straightforward option for photographers looking to extend the reach of their existing Canon EF telephoto glass.

Multiplies the focal length of compatible Canon EF lenses by 1.4x, providing additional reach without changing lenses.

1.4x Focal Length Extension

Retains autofocus functionality with supported Canon EF telephoto lenses, keeping AF-driven workflows intact.

Autofocus Compatible

Fits between the camera body and compatible Canon EF lenses, integrating directly into the existing EF lens ecosystem.

Canon EF Mount

Designed to cover full frame sensors with no vignetting when used with compatible lenses.

Full Frame Coverage

Reduces maximum aperture by one stop — a 300mm f/2.8 becomes a 420mm f/4 — which should be accounted for in exposure settings.

1-Stop Light Loss

Adds only 220g to a telephoto setup, keeping the overall kit weight manageable for extended field use.

Lightweight at 220g

Second-generation version with improved optical coatings and element arrangement over the original Extender EF 1.4x.

Mark II Optical Design

Supports manual focus operation in addition to autofocus, giving shooters full control when needed.

Manual Focus Override

User Manual

Canon Extender 1.4x II Review

Canon Extender EF 1.4x II Teleconverter

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Works great. Very useful with telephoto lenses. This is the EF version. Glass is clean. Body has few if any paint wear. Comes with front and rear caps.

<p><span style="background-color: rgb(255, 255, 255); color: rgb(0, 0, 0);">Works great. Very useful with telephoto lenses. This is the EF version. Glass is clean. Body has few if any paint wear. Comes with front and rear caps.</span></p>

Spec	Detail
Lens Format	Full Frame
Camera System	DSLR
Zoom Prime	Prime
Auto Focus	Yes
Focus Type	Auto, Manual
Focal Length Range	Telephoto
Image Stabilization	None
Weight unit	g
Weight value	220
Mount lens	Canon EF

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Canon Extender EF 1.4x II Teleconverter

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