Ricoh S10 24-72MM F2.5-4.4VC - Manual (Page 15)

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Mode M: Manual Exposure
If [Auto] or [Auto-Hi] is selected for ISO Setting, ISO will be fixed at 100
while the camera is in manual exposure mode.
The Zoom Macro Scene Mode
When the mode dial is set to SCENE, selecting the [Zoom Macro] mode
will automatically optimize the zoom position, allowing you to shoot the
subject at a larger size than with normal macro shooting. In zoom macro
mode, the optical zoom cannot be used. For zoom shooting methods, refer
to the “Camera Body User Guide”.