Canon EF 200-400mm f/4L IS USM Extender 1.4X User Manual - Page 17

The internal extender installed in this lens can only be used under certain conditions depending on the type of EOS camera used. Please use the information below to determine which group your camera belongs to and follow the applicable instructions before use. •• Group 1 cameras 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, EOS 5D Mark II, EOS 7D, EOS 60D, EOS 50D, EOS 40D, EOS 30D, EOS REBEL T3i/600D, EOS REBEL T2i/550D, EOS REBEL T1i/500D, EOS REBEL XSi/450D, EOS REBEL T3/1100D, EOS REBEL XS/1000D, EOS DIGITAL REBEL XTi/400D DIGITAL, EOS-1V/HS, EOS-3 •• Group 2 cameras Any EOS camera which is not listed in Group 1 When using the lens with Group 1 cameras ●● When using the lens with Group 1 cameras The internal extender switch can only be moved when shooting with the viewfinder while the camera and lens are not in operation. Not doing so may prevent the camera or lens from working properly*. (p.17) ●● When using the lens with Group 2 cameras The internal extender switch can be moved regardless of shooting style setting (shooting with the viewfinder, Live View shooting, and movie shooting) by pressing the shutter button halfway while the camera and lens are not in operation. Not doing so may prevent the camera or lens from working properly*. (p.17) * There are times when an error message will be displayed and shooting operation is prevented. If this occurs, please turn the camera OFF and then ON. Although shooting is possible, the AF function may not work properly. Also, there are times when images will not be processed correctly by the camera's internal image correction function or by DPP software since accurate lens information is not recorded. ENG-16