Sony DSLR-A230 User Manual

When you set the shutter speed to a second or longer (Long exposure 
shooting), noise reduction is turned on for the same duration that the shutter 
is open.
This is to reduce the grainy noise typical in a long exposure. When noise 
reduction is in progress, a message appears and you cannot take another 
picture. Select [On] to prioritize the image quality. Select [Off] to prioritize 
the timing of shooting.

MENU button t  

t [Long exp.NR] t [Off]

Notes
• Noise reduction is not performed on continuous shooting, continuous bracketing, or 

continuous self-timer images even when it is set to [On].

• When the exposure mode is set to AUTO or Scene Selection, you cannot turn off 

noise reduction.

When shooting with the ISO set at 1600 or above, the camera reduces the 
noise that becomes more noticeable when the camera sensitivity is high.
Select [On] to prioritize the image quality. Select [Off] to prioritize the 
timing of shooting.

MENU button t  

t [High ISO NR] t [Off]

Notes
• Noise reduction is not performed on continuous shooting, continuous bracketing, or 

continuous self-timer images even when it is set to [On].

• When the exposure mode is set to AUTO or Scene Selection, you cannot turn off 

noise reduction.

Disabling the noise reduction during long exposure 
shootings

Disabling the noise reduction at high ISO sensitivity 
settings