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ENG-17
● Attach the extender to the lens, and then attach the lens to the camera. To remove it, reverse the order.
Errors may occur if you attach the extender to the camera rst.
● When using this lens when shooting with EOS A2/A2E/5, use –0.5 step exposure compensation when using
extender EF1.4x II, and use –1 step exposure when using extender EF2x II.
● Autofocusing (AF) is not possible when using Extender EF2x II/III. Therefore, please use manual focus (MF)
for shooting when using this extender.
● Autofocusing (AF) is not possible when using Extender EF1.4x II/III. Therefore, please use manual focus
(MF) for shooting when using this extender.
However, autofocusing (AF) using only center AF points while shooting is possible when using the lens with
the following camera models: EOS-1D X*, EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark IV,
EOS-1D Mark III, EOS-1D Mark II N, EOS-1D Mark II, EOS-1D, EOS 5D Mark III*, EOS 7D Mark II, EOS-
1V/HS, and EOS 3
● Extenders cannot be used more than one at a time.
When an extender is attached, the AF speed will become slower to retain proper control.
Extenders (Sold Separately)
* This camera will allow autofocusing while shooting after updating the camera’s rmware.
Please check the Canon website for information about rmware updates.
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