Sony NEX-5N User Manual

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Sets the luminous sensitivity.

1 MENU t [Brightness/Color] t [ISO] t desired setting.

• [ISO AUTO] is selected when using the following functions:

– [Intelligent Auto]
– [Scene Selection]
– [Anti Motion Blur]
– [Sweep Panorama]
– [3D Sweep Panorama]

• The larger the number, the higher the noise level.
• When the exposure mode is set to [Program Auto], [Aperture Priority], [Shutter Priority], and [ISO] is set 

to [ISO AUTO], ISO is automatically set between ISO100 and ISO3200.

• The [ISO AUTO] setting is not provided in [Manual Exposure]. If you change the exposure mode to 

[Manual Exposure] with the [ISO AUTO] setting, it is switched to 100. Set the ISO according to your 
shooting conditions.

Sets the ISO sensitivity automatically.

Sets the sensitivity to light of the imaging sensor. Higher 
sensitivities enable faster  shutter speeds and/or smaller 
apertures (larger f-values). The higher the sensitivity, the more 
image noise can become visible.

z

Adjusting ISO Sensitivity (Recommended Exposure 
Index)

ISO setting (speed) is the sensitivity to light of recording media that incorporates an image 
sensor that receives light. Even when the exposure is the same, images differ depending on 
the ISO setting.

High ISO sensitivity
With high ISO sensitivity, images will be captured with an 
appropriate brightness even under insufficient exposure. 
However, increasing ISO sensitivity will cause images to 
become noisy.

Low ISO sensitivity
You can record smooth images. However, compensation for 
low ISO sensitivity will be made by slowing down the shutter 
speed. You should take camera shake or movement of subjects 
into account, too.