Flash Coverage Setting

Flash coverage can be set automatically or manually. Set to A (Auto) for automatic adjustment of flash coverage to suit the focal length (shooting angle of view) of the attached lens and the size of the image sensor (). With M (Manual), you can manually set flash coverage in a range of 24–105 mm.

  1. Press Select/Set.

  2. Select the option shown in (1).

    • Turn the Select dial dial to select an option, then press Select/Set.

  3. Set the flash coverage.

    • Turn the Select dial dial to select flash coverage, then press Select/Set.
    • To set automatically, select AUTO, and to set manually, select a value (focal length in mm).

Note

  • Flash coverage that you set manually should match or exceed the shooting angle of view, to avoid vignetting.
  • A Out of flash coverage range warning warning is displayed on the LCD panel when a lens with a focal length less than 24 mm is attached. Similarly, a Out of flash coverage range warning warning is displayed when you are using a camera with an image sensor smaller than full-frame and the actual shooting angle of view exceeds that of a 24 mm lens.

Wide Panel

The built-in wide panel enables flash photography covering the angle of view of an ultra wide-angle lens with a focal length of 14 mm.

  1. Pull out the wide panel.

    • Pull out the tab in the middle of the wide panel.
    • The white catchlight panel comes out with it.

  2. Push back the catchlight panel.

    • Push back the catchlight panel by itself, leaving the wide panel down.

Caution

  • A Wide panel + bounce warning warning appears on the LCD panel when the wide panel is used in bounce flash photography, because underexposure is more likely to occur under these conditions.
  • Do not pull out the wide panel with excessive force. This may detach it from the Speedlite.
  • Not compatible with shooting angles of view from the EF15mm f/2.8 Fisheye or EF8-15mm f/4L Fisheye USM.

Note

  • Flash coverage is set automatically when the wide panel is used. It cannot be changed manually.