Changing ISO sensitivity (ISO)

Select a value according to subject brightness. Higher values let you photograph darker scenes but also increase image “noise” (mottling). Select [Auto] to let the camera adjust sensitivity according to lighting conditions.

Button

ISO Button U HIi

Super control panel

OK U ISO

ISO sensitivity is fixed at [Auto] during movie recording when [P], [A], or [S] is selected for [nMode] (movie exposure mode). Setting [nMode] to [M] allows other options to be selected. g “Assigning Roles to the Front and Rear Dials (KDial Function / nDial Function)”

Auto	Sensitivity is adjusted automatically according to shooting conditions. During still photography, you can choose the maximum and standard values for ISO sensitivity (“Setting the range of ISO sensitivity values selected in [Auto] mode (KISO-A Upper/Default / bISO-A Upper/Default)”). You can change the shutter speed at which ISO sensitivity starts to rise in P and A modes (“Setting the shutter speed at which the camera automatically raises ISO sensitivity (KISO-A Lowest S/S)”). During movie recording, ISO sensitivity will be set to values of from ISO 200 to 12800. When [M] is selected for [nMode] (movie exposure mode), auto ISO sensitivity control can be enabled by selecting [On] for [bISO-Auto]. You can also choose maximum and standard values for ISO sensitivity. g “Setting the range of ISO sensitivity values selected in [Auto] mode (KISO-A Upper/Default / bISO-A Upper/Default)”
L80, L100, 200–102400 (still photography)	Choose a value for ISO sensitivity. ISO 200 offers a good balance between noise and dynamic range. Choose [L100] or [L80] for larger apertures (higher f-numbers) or slower shutter speeds. [L80] is equivalent to ISO 80, [L100] to ISO 100. [L80] and [L100] are available at all exposure step values. [L80] and [L100] reduce dynamic range.
200–12800 (movie recording)	Choose a value for ISO sensitivity. ISO 200 offers a good balance between noise and dynamic range.

Auto

Sensitivity is adjusted automatically according to shooting conditions.

During still photography, you can choose the maximum and standard values for ISO sensitivity (“Setting the range of ISO sensitivity values selected in [Auto] mode (KISO-A Upper/Default / bISO-A Upper/Default)”).

You can change the shutter speed at which ISO sensitivity starts to rise in P and A modes (“Setting the shutter speed at which the camera automatically raises ISO sensitivity (KISO-A Lowest S/S)”).

During movie recording, ISO sensitivity will be set to values of from ISO 200 to 12800. When [M] is selected for [nMode] (movie exposure mode), auto ISO sensitivity control can be enabled by selecting [On] for [bISO-Auto]. You can also choose maximum and standard values for ISO sensitivity. g “Setting the range of ISO sensitivity values selected in [Auto] mode (KISO-A Upper/Default / bISO-A Upper/Default)”

L80, L100,
200–102400
(still photography)

Choose a value for ISO sensitivity. ISO 200 offers a good balance between noise and dynamic range. Choose [L100] or [L80] for larger apertures (higher f-numbers) or slower shutter speeds. [L80] is equivalent to ISO 80, [L100] to ISO 100.

[L80] and [L100] are available at all exposure step values.
[L80] and [L100] reduce dynamic range.

200–12800
(movie recording)

Choose a value for ISO sensitivity. ISO 200 offers a good balance between noise and dynamic range.

Combining [KISO] values over ISO 16000 with settings that use an electronic shutter (for example, silent mode or focus bracketing) sets the flash sync speed to 1/50 s.
Regardless of the value selected for ISO sensitivity, the flash sync speed for photos taken using ISO bracketing in silent mode is 1/50 s.
When [M] is selected for [nMode] (movie exposure mode), ISO sensitivity can be adjusted during recording using touch controls (“Touch Controls (Silent Controls)”) or by rotating the front or rear dial.
If [Dramatic Tone] or [Watercolor] is chosen for picture mode during still photography, sensitivity will not exceed ISO 1600 when [Auto] is selected.
The following restrictions apply when [M] is selected for [nMode] (movie exposure mode) depending on the picture mode:
- [a2 OM-Log400], [a3 HLG]:
  - If the frame rate selected for [nX] is 23.98p, 24.00p, 25.00p, or 29.97p, [Auto] is restricted to sensitivities of ISO 400–6400.
  - If the frame rate selected for [nX] is 50.00p or 59.94p, [Auto] is restricted to sensitivities of ISO 400–12800.
  - The lowest value that can be selected manually is ISO 400.
- [Dramatic Tone] / [Watercolor]:
  - [Auto] is restricted to sensitivities of ISO 200–3200.
- Art filters other than [Dramatic Tone] / [Watercolor]:
  - If the frame rate selected for [nX] is 23.98p, 24.00p, 25.00p, or 29.97p, [Auto] is restricted to sensitivities of ISO 200–3200.
  - If the frame rate selected for [nX] is 50.00p or 59.94p, [Auto] is restricted to sensitivities of ISO 200–6400.
- Other picture modes:
  - If the frame rate selected for [nX] is 23.98p, 24.00p, 25.00p, or 29.97p, [Auto] is restricted to sensitivities of ISO 200–6400.