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Canon Teleconverter Compatibility Chart

Extender is Canon’s name for a teleconverter. These high-performance accessories multiply the effective focal length of an attached lens by 1.4x or 2x. For example, a 200mm lens with Extender 1.4x has an effective focal length of 280mm: with the Extender 2x, this increases to 400mm. Extenders are only compatible with selected EF lenses listed below.

Canon Extender EF 1.4x III Compatibility

Canon EF 1.4x III ExtenderIdeal for press, sports and nature photography, this compact extender increases the focal length of Canon L-series telephoto or telephoto zoom lens’ by a factor of 1.4x, with higher AF accuracy and improved communication between camera and lens.

Extender EF 1.4x III Compatibility Chart
Lens Attachment Focal Length f-stop Max. Magnification AF Possible IS
  1. IS will not work with the following cameras EOS-1, EOS 5, EOS 100, EF-M, EOS 1000/F/n/Fn, EOS 700, EOS 10, EOS RT, EOS 600/630, EOS 850, EOS 750, EOS 620, EOS 650
  2. If using 1/3 stop increments
  3. AF possible with EOS–1 series only
EF 135mm f/2L USM 189 2.8 – 45 0.27 Yes -
EF 200mm f/2L IS USM 280 2.8 – 45 0.18 Yes Yes
EF 200mm f/2.8L II USM 280 4 – 45 0.22 Yes -
EF 300mm f/2.8L IS II USM 420 4 – 45 0.25 Yes Yes
EF 300mm f/4L IS USM 420 5.6 – 45 0.33 Yes Yes
EF 400mm f/2.8L IS II USM 560 4 – 45 0.25 Yes Yes
EF 400mm f/4L DO IS USM 560 5.6 – 45 0.17 Yes Yes
EF 400mm f/5.6L USM 560 8 – 45 0.18 Yes3 -
EF 500mm f/4L IS USM 700 5.6 – 45 0.21 Yes Yes
EF 600mm f/4L IS USM 840 5.6 – 45 0.17 Yes Yes
EF 800mm f/5.6L IS USM 1120 8 – 45 0.2 Yes3 Yes
EF 180mm f/3.5L Macro USM 252 4.5-45 (5-45)2 1.4 Yes -
EF 70-200mm f/2.8L IS II USM 98 – 280 4 – 45 0.30 Yes Yes
EF 70-200mm f/2.8L USM 98 – 280 4 – 45 0.22 Yes -
EF 70-200mm f/4L IS USM 98 – 280 5.6 – 45 0.31 Yes Yes
EF 70-200mm f/4L USM 98 – 280 5.6 – 45 0.31 Yes -
EF 100-400mm f/4.5-5.6L IS USM 140 – 560 6.7 – 54 (6.3-57)2 0.28 Yes3 Yes1

Extender EF 2x III Compatibility

Canon EF 2x III ExtenderThe Extender EF 2x III is specially designed to work in conjunction with L-series IS super-telephoto lenses, extending their focal length by a factor of 2x. The extender’s design ensures there is no loss of lens performance or image quality.

Extender EF 2x III Compatibility Chart
Lens Attachment Focal Length f-stop Max. Magnification AF Possible IS
  1. IS will not work with the following cameras EOS-1, EOS 5, EOS 100, EF-M, EOS 1000/F/n/Fn, EOS 700, EOS 10, EOS RT, EOS 600/630, EOS 850, EOS 750, EOS 620, EOS 650
  2. If using 1/3 stop increments
  3. AF possible with EOS–1 series only
EF 135mm f/2L USM 270 4 – 64 0.38 Yes -
EF 200mm f/2L IS USM 400 4 – 64 0.24 Yes Yes
EF 200mm f/2.8L II USM 400 5.6 – 64 0.32 Yes -
EF 300mm f/2.8L IS II USM 600 5.6 – 64 0.36 Yes Yes
EF 300mm f/4L IS USM 600 8 – 64 0.47 Yes3 Yes1
EF 400mm f/2.8L IS II USM 800 5.6 – 64 0.35 Yes Yes
EF 400mm f/4L DO IS USM 800 8 – 64 0.24 Yes3 Yes1
EF 400mm f/5.6L USM 800 11 – 64 0.25 Not Possible -
EF 500mm f/4L IS USM 1000 8 – 64 0.31 Yes3 Yes1
EF 600mm f/4L IS USM 1200 8 – 64 0.24 Yes3 Yes1
EF 800mm f/5.6L IS USM 1600 11 – 64 0.28 Not Possible Yes
EF 180mm f/3.5L Macro USM 360 6.7-64 (7.1-64)2 2 Not Possible -
EF 70-200mm f/2.8L IS II USM 140 – 400 5.6 – 64 0.44 Yes Yes
EF 70-200mm f/2.8L USM 140 – 400 5.6 – 64 0.33 Yes -
EF 70-200mm f/4L IS USM 140 – 400 8 – 64 0.45 Yes3 Yes1
EF 70-200mm f/4L USM 140 – 400 8 – 64 0.45 Yes3 -
EF 100-400mm f/4.5-5.6L IS USM 200 – 800 9.5 – 76 (9-81)2 0.41 Not Possible Yes1
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Canon EF 1.4x III ExtenderCanon EF 1.4x III Extender
£329.00
Canon EF 2x III ExtenderCanon EF 2x III Extender
£329.00