Using AF when an extender lens is mounted (EOS 5DS / EOS 5DS R)

    18-May-2015
    8202596400

    Solution

      The availability of AF when an extender lens is mounted is shown below.
      AF Area Selection ModeType of extenderAF availability
      All
      (Except Center)
      EXTENDER EF 1.4xWhen any of the extenders shown to the left are mounted on a lens with a maximum aperture darker than F4, AF cannot be used.
      EXTENDER EF 1.4x II
      EXTENDER EF 1.4x III
      EXTENDER EF 2xWhen any of the extenders shown to the left are mounted on a lens with a maximum aperture darker than 2.8, AF cannot be used.
      EXTENDER EF 2x II
      EXTENDER EF 2x III
      CenterEXTENDER EF 1.4xWhen any of the extenders shown to the left are mounted on a lens with a maximum aperture darker than 2, AF cannot be used.
      EXTENDER EF 1.4x II
      EXTENDER EF 1.4x III
      EXTENDER EF 2xWhen any of the extenders shown to the left are mounted on a lens with a maximum aperture darker than 1.4, AF cannot be used.
      EXTENDER EF 2x II
      EXTENDER EF 2x III