Help Guide
Interchangeable Lens Digital Camera
ILCE-9M3 α9III
Anti-dust Function
If dust or debris gets inside the camera and adheres to the surface of the image sensor, clean the image sensor using
[Sensor Cleaning]. You can also set whether or not to close the sensor curtain when you turn off the camera so that dust
or debris is prevented from adhering to the image sensor.
Menu item details
Sensor Cleaning:
The filter glass surface is ultrasonically vibrated to shake off the dust and dirt. Use a commercially available blower to
clean the image sensor surface if necessary.
Curtain when Pwr OFF:
Sets whether to close the sensor curtain when you turn off the camera. ([On]/[Off])
If you select [On], the sensor curtain will close when you set the ON/OFF (power) switch to OFF while the camera is
turned on. Note that it may take some time for the sensor curtain to close after you set the ON/OFF (power) switch to
OFF.
The sensor curtain also makes a sound when the ON/OFF (power) switch is set to ON or OFF.
Hint
To clean the image sensor by yourself, execute [Sensor Cleaning] or set [Curtain when Pwr OFF] to [Off].
Note
When [Curtain when Pwr OFF] is set to [On], attach the lens cap before storing the camera. Otherwise, a strong light source
(such as sunlight) may become focused inside the camera, causing smoke or fire. Even if the light source is slightly away from
the angle of view, it may still cause smoke or fire when the lens cap is not attached.
Do not touch the closed sensor curtain with your fingers or clean it with a blower. The sensor curtain may become damaged.
If there is a risk of water droplets adhering to the sensor curtain, set [Curtain when Pwr OFF] to [Off]. If [Curtain when Pwr OFF] is
set to [On], water droplets may adhere to the sensor curtain and cause a malfunction.
Make sure that the remaining battery level is 51% or more before performing [Sensor Cleaning].
Even if [Curtain when Pwr OFF] is set to [On], the sensor curtain will not close when the power turns off due to activation of the
power-saving mode or battery exhaustion. In this case, you can close the sensor curtain by turning the camera on and off again.
Related Topic
Cleaning the image sensor (Sensor Cleaning)
TP1001169120
5-056-662-11(1) Copyright 2023 Sony Corporation
MENU → (Setup) → [Setup Option] → [Anti-dust Function] → desired setting item.
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