How do I set the ISO Speed (EOS 5D Mark II)

    30-Oct-2008
    8200355700

    Solution

    ISO Speed Guide
    Set the ISO speed (image sensor's sensitivity to light) to suit the ambient light level. In the fully-automatic modes ( ), the ISO speed is set automatically.

    ISO Speed Guide
    ISO SpeedShooting Situation (No flash) Flash Range
    L, 100-200Sunny outdoorsThe higher the ISO speed, the farther the flash range will be.
    400-800Overcast skies, evening
    1600-6400,H1,H2Dark indoors or night

    CAUTION
    • If [8C.Fn II -3: Highlight tone priority] is set to [1: Enable], the settable ISO speed range will be ISO 200 - 6400.
    • Using a high ISO speed or shooting in high-temperature conditions may result in more grainy images. Long exposures can also cause irregular colors in the image.
    • When you shoot at high ISO speeds, horizontal stripes may appear as noise.

    REFERENCE
    With [C.Fn I -3: ISO expansion] set to [1: On], "L"(equivalent to ISO 50), "H1" (equivalent to ISO 12800), and "H2"(equivalent to ISO 25600) can also be set.

    Setting the ISO Speed
    1.Set the power switch to <ON>.

    2. Press the < > button.



    3.While looking at the LCD panel, turn the <Main Dial>.
    It can be set within ISO 100-6400 in 1/3-stop increments.



    With "A" selected, the ISO speed will be set automatically.

    About "A" (Auto) ISO Speed

    If the ISO speed is set to "A", the actual ISO speed to be set will be displayed when you press the shutter button halfway. As indicated below, the ISO speed will be set automatically to suit the shooting mode.



    Shooting ModeISO Speed Setting
    ISO100-3200
    Fixed at ISO 400
    With flashFixed at ISO 400(If fill flash results in overexposure, ISO 100 or a higher ISO will be set.)