Sony PCM-A10 High-Resolution Audio Recorder - Manual (Page 280)

Help Guide
Interchangeable Lens Digital Camera
ILCE-7RM5 α7RV
Release w/o Card
Sets whether the shutter can be released when no memory card has been inserted.
Menu item details
Enable:
Releases the shutter even if no memory card has been inserted.
Disable:
Does not release the shutter when no memory card has been inserted.
Note
When no memory card has been inserted, the images shot will not be saved.
The default setting is [Enable]. It is recommended that you select [Disable] prior to actual shooting.
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MENU → (Shooting) → [Shutter/Silent] → [Release w/o Card] → desired setting. 1
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