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1/30 f/3.5 10.2 mm ISO 200

PENTAX Corporation PENTAX Optio S5z

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toothbrush
coil
magnet
Philips


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Two coils

Two coils
To save a full H-bridge, they just wound two coils onto the core. It is driven by 2 MOSFETs in a small chip (TPC8211).

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