Sony A55VHZ 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 Exposure NR] t [Off]

Notes
• When the exposure mode is set to Sweep Panorama, Continuous Advance Priority 

AE, or continuous shooting, continuous bracketing, [Hand-held Twilight] in Scene 
Selection, or ISO is set to [Multi Frame NR], noise reduction is not performed even 
when it is set to [On].

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

turn off noise reduction.

The camera reduces the noise that becomes more noticeable when the 
camera sensitivity is high.
Select [Auto] to prioritize the image quality. Select [Weak] to prioritize the 
timing of shooting.

MENU button t  

t [High ISO NR] t Select the desired 

Notes
• [Weak] is selected automatically for continuous shooting or continuous bracketing 

images, even when you set it to [Auto].

• When the exposure mode is set to AUTO, AUTO+, Sweep Panorama, or Scene 

Selection, this item is set to [Weak].

• Noise reduction is not performed on RAW images.

Disabling the noise reduction during long exposure 
shootings

Setting the noise reduction at high ISO sensitivity settings