We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White Canon EF 1.4x extender cylinder, 2.8 by 1.1 inches, 7.9 oz

Canon

Canon 4409B002 1.4x EF Extender III White camera lens

SKU CH-0E8J-86E54 MPN 4409B002

Extends compatible L-series telephoto lenses by 1.4x with microcomputer communication, Spectra and fluorine coatings, plus dust- and water-resistant construction

  • TypeConverters & Adapters
  • ColorWhite
  • CompatibilityThis lens is only compatible with fixed focal length L-serie
  • Camera MountCanon EF
  • Magnification1.4x
  • Lens Construction7 elements in 3 groups
  • Extends focal length by 1.4x for distant subjects
  • Microcomputer enables communication between body, lens and extender
  • Spectra coating reduces ghosting and flare in bright light
  • Fluorine coating resists smears and fingerprints on elements
  • Dust and water resistant construction suits outdoor use

Canon 1.4x EF Extender III Overview

The Canon Extender EF 1.4x III multiplies the focal length of compatible L-series lenses by a factor of 1.4x. It uses a 7-element, 3-group optical design with Spectra coating to reduce ghosting and flare. A built-in microcomputer maintains communication between the camera body and lens. The extender features a white finish and weighs 7.9 oz.

Suitable Lenses and Limitations

This extender works only with fixed focal length L-series lenses of 135 mm and longer, plus the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L. It will not function with other EF or EF-S lenses, nor with third-party glass. Photographers needing wider compatibility should look at alternative solutions.

Installation and Common Issues

The unit mounts between the camera body and lens via the standard Canon EF mount, adding 1.1 inches to the optical path. Dust and water resistant construction protects the internals during field use. The fluorine coating on the front and rear elements resists smears and fingerprints. Autofocus speed may decrease slightly due to the reduced maximum aperture.

Highlights

  • Extends focal length by 1.4x for distant subjects
  • Microcomputer enables communication between body, lens and extender
  • Spectra coating reduces ghosting and flare in bright light
  • Fluorine coating resists smears and fingerprints on elements
  • Dust and water resistant construction suits outdoor use

Specifications

BrandCanon
Model4409B002
TypeConverters & Adapters
ColorWhite
CompatibilityThis lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
Camera MountCanon EF
Magnification1.4x
Lens Construction7 elements in 3 groups
FeaturesCanon Professional Image Quality
Dimensions2.8 x 1.1 in
Weight7.9 oz.
Shipping weight0.35 kg
Package size121 × 95 × 95 mm

Questions about this item

Which of my current Canon EF lenses can I attach this 1.4x Extender III to?

It works with fixed focal length L-series lenses of 135mm and longer, plus the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L and EF 100-400/4.5-5.6L.

Will autofocus and aperture control still function on my older compatible L-series lens when this extender is mounted?

Yes, the built-in microcomputer maintains full electronic communication between the camera body, lens and extender for autofocus and aperture operation.

How can I verify the extender is performing correctly after I attach it?

Check that the viewfinder or LCD shows the expected 1.4x focal length increase, autofocus locks accurately, and images exhibit minimal ghosting or flare thanks to the Spectra and fluorine coatings.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.