Sony DSC-RX100M7 Help Manual page 202

Help Guide
Digital Still Camera
DSC-RX100M7
Release w/o Card
Sets whether the shutter can be released when no memory card has been inserted.
MENU → (Camera Settings2) → [Release w/o Card] → desired setting.
1
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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