EOS-1D X Mark III: Other Menu Functions

Article ID: ART176285 | Date published: 02/03/2020 | Date last updated: 09/15/2023


Other Menu Functions


Other Menu Functions

Other Menu Functions


  • Lens aberration correction

    Peripheral illumination, chromatic aberration, and diffraction can be corrected as you record movies. For details on lens aberration correction, see Lens Aberration Correction.


  • MovieISO speed settings

    • ISO speed

      In Movie manual exposure mode, you can set the ISO speed manually. You can also select ISO Auto.

    • ISO speed range

      For Movie manual exposure mode, you can set the manual ISO speed setting range (minimum and maximum limits).

    • Max for Auto

      You can set the maximum limit for ISO Auto in movie recording in Movies / Shutter-priority AE / Aperture priority AE (movie) mode or in Movie manual exposure mode with ISO Auto.

  • Highlight tone priority

    You can reduce overexposed, clipped highlights as you record movies. For details on Highlight tone priority, see Highlight Tone Priority.


  • Movie Auto slow shutter

    You can choose whether to record movies that are brighter and less affected by image noise than when set to [Disable] by automatically slowing the shutter speed under low light.

    Available in Movies or Aperture priority AE (movie) recording mode. Applies when the frame rate of the movie recording size is 59.94fps or 50.00fps.

    • Disable

      Enables you to record movies with smoother, more natural movement, less affected by subject shake than when set to [Enable]. Note that under low light, movies may be darker than when set to [Enable].

    • Enable

      Enables you to record brighter movies than when set to [Disable] by automatically reducing the shutter speed to 1/30 sec. (NTSC) or 1/25 sec. (PAL) under low light.


    • Setting to [Disable] is recommended when recording moving subjects under low light, or when afterimages such as trails may occur.


  • HDMI display

    You can specify how movies are displayed as they are recorded via HDMI to an external device. Movie output itself is either 4K or Full HD, depending on the [Movie rec. size] setting.

    The default setting is [Live View shooting+External monitor].

  • Live View shooting+External monitor

    • Enables movie display both on the camera screen and on the other device, via HDMI output.
    • Camera operations such as image playback or menu display are shown on the other device via HDMI, not on the camera.
  • external monitor

    • Deactivates the camera screen during output via HDMI, so that the screen is blank.
    • Shooting information, AF points, and other information is shown on the external device via HDMI, but you can stop output of this information by pressing the INFO button.
    • Before recording movies externally, confirm that no information is being sent by the camera by making sure no shooting information, AF points, and so on is displayed on external monitors or other devices.

Troubleshooting For longer HDMI output

To continue HDMI output for longer than 30 min., select [Live View shooting+External monitor], then set [Set-up: Auto power off] to [Disable] ().


  • HDMI output without information prevents display of warnings about the card space, battery level, or high internal temperature () via HDMI.
  • During HDMI output, display of the next image may take some time if you switch between movies of different recording qualities or frame rates.
  • Avoid operating the camera when recording movies to external devices, which may cause information to be displayed in the HDMI video output.
  • Brightness and color of movies recorded with the camera may look different from that of HDMI video output recorded by external devices, depending on the viewing environment.


  • By pressing INFO the button, you can change the information displayed.
  • Time codes can be added to HDMI video output ().
  • Audio is also output via HDMI, except when [Sound rec.] is set to [Disable].




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