Sony DSLR-A900 Mode D'Emploi

Sensitivity to light is expressed by the ISO number (recommended 
exposure index). The larger the number, the higher the sensitivity.

Notes
• The available luminosity limits for an image (dynamic range) are a little narrower in 

the range less than ISO 200. When ISO 3200 or higher is selected, the range is 
treated as an expanded range and the noise is more noticeable. Adjust the ISO 
number after you check the amount of noise on the image.

• The [AUTO] setting is not provided in exposure mode M. If you change the 

exposure mode to M with the [AUTO] setting, it is switched to [200]. Set the ISO 
according to your shooting conditions.

• You can adjust the range of [AUTO] with [ISO Auto Range] in the 

 

Recording menu (page 111).

ISO button

Select the desired value with v/V on the multi-selector.

• You can use the front or rear control dial instead. The number is 

incremented by 1 step using the front control dial and it is incremented by 
1/3 step using the rear control dial.