Sony SLT-A99V - Manual (Page 224)

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Cleaning the image sensor
If dust or debris enters the camera and adheres to the image sensor (the part
that converts the light to an electric signal), it may appear as dark spots on
the photo image, depending on the shooting environment. If there is dust on
the image sensor, follow the steps below to clean the sensor.
Notes
• Cleaning cannot be performed when the battery level is 50% or less.
• The camera starts beeping if the battery level becomes low during cleaning. Stop
cleaning immediately and turn the camera off. The use of an AC-PW10AM AC
Adaptor (sold separately) is recommended.
• The cleaning should be completed quickly.
• Do not use a spray blower because it may scatter water droplets inside the camera
body.
If further cleaning is needed after using the cleaning mode, the image
sensor can be cleaned with the blower by following the steps below.
Cleaning the image sensor automatically using the
cleaning mode of the camera
1
Confirm that the battery is fully charged (page 53).
2
MENU button t 4 t [Cleaning Mode]
3
Select [Enter] with v on the multi-selector, and press the
center of the multi-selector.
The image sensor vibrates for a short time, and eliminates dust from the
sensor.
4
Turn off the camera.
Cleaning the image sensor using a blower