Cyber-shot User Guide
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Top page > Shooting > Functions that can be selected using the Fn button > ISO

## ISO

1. Fn (ISO) desired mode

- In case you select [Multi Frame Noise Reduct.] or [ISO AUTO], press on the control wheel to display the setting screen, then select a desired value.

| (Multi Frame Noise Reduct.) | The camera overlays the continuous shots so that an image with less noise results. Press on the control wheel to display the setting screen, then select a desired value from ISO AUTO to 102400 using /.
| (ISO AUTO) | The camera sets the ISO sensitivity automatically based on the surrounding light conditions. You can set the maximum and minimum ISO value for [ISO AUTO] mode. Press to display the setting screen.
| 50/80/100/125/200/400/ 800/1600/3200/6400/ 12800/25600 | You can reduce image blurring in dark locations or with moving subjects by increasing the ISO sensitivity (select a larger number).

The ISO numbers in the table above are representative values.
Turning the control wheel increases or decreases the ISO sensitivity by increments of 1/3 as follows:
ISO100 ISO125 ISO160 ISO200 ... ISO25600
Adjusting ISO Sensitivity (Recommended Exposure Index)
ISO sensitivity is a speed rating for recording media that incorporates an image sensor that receives light. Even when the exposure is the same, images differ depending on the ISO sensitivity.
High ISO sensitivity
Records a bright image even in dark locations while increasing shutter speed to reduce blur.
However, the image tends to be noisy.
Low ISO sensitivity
Records a smoother image.
However, when the exposure is insufficient, the image may be darker.
Notes

- When [ISO] is set to a value lower than ISO 100, the range for recordable subject brightness (dynamic range) may decrease.

- For movies, the value between ISO 100 to ISO 6400 is available.

- When [ISO] is set to [Multi Frame Noise Reduct.], the camera overlays the images. It takes more time to record an image, and the flash does not operate.

Related Topic
Still shooting menu items not available in some REC modes
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