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“Sensitivity” refers to the camera's sensitivity to light. Choose from values between 200 and 6400, or select L (100), H (12800), H (25600), or H (51200) for special situations. Higher values can be used to reduce blur when lighting is poor, while lower values allow slower shutter speeds or wider apertures in bright light; note, however, that mottling may appear in pictures taken at high sensitivities, particularly at H (51200), while choosing L (100) reduces dynamic range. Values of from ISO 200 to ISO 6400 are recommended in most situations. If AUTO1, AUTO2, or AUTO3 is selected, the camera will adjust sensitivity automatically in response to shooting conditions.

  1. Press MENU/OK in shooting mode to display the shooting menu.

  2. Press the selector up or down to highlight ISO and press MENU/OK.

  3. Press the selector up or down to highlight the desired option and press MENU/OK to select.

    The camera adjusts sensitivity automatically according to subject brightness.
    6400 — 200
    Sensitivity is set to the specified value, which is shown in the display.
    H (51200)/H (25600)/
    H (12800)/L (100)
    Extended settings for special situations. Note that these options may produce mottling or reduced dynamic range.

See “Restrictions on Camera Settings” for information on when extended ISO sensitivity settings are available.

Sensitivity is not reset when the camera is turned off.

L (100) is reset to ISO 200 and H (12800), H (25600), and H (51200) are reset to ISO 6400 when RAW, FINE+RAW, or NORMAL+RAW is selected for image quality.


The following options are available when AUTO1, AUTO2, or AUTO3 is selected:

Option Default
AUTO2: 1600
AUTO3: 3200

The camera automatically chooses a sensitivity between the default and maximum values. Sensitivity is only raised above the default value if the shutter speed required for optimal exposure would be slower than the value selected for MIN. SHUTTER SPEED.

If the value selected for DEFAULT SENSITIVITY is higher than that selected for MAX. SENSITIVITY, DEFAULT SENSITIVITY will be set to the value selected for MAX. SENSITIVITY.

The camera may select shutter speeds slower than MIN. SHUTTER SPEED if pictures would still be underexposed at the value selected for MAX. SENSITIVITY.