The only combination magnet in the 10 (G & F) holds the mirror for self
timer, and locks the mirror for dead/no battery condition. The magnet that
hold s the 2nd curtain open is a plain electromagnet.
John
http://www.zuiko.com
Stuart Goggin wrote:
> RE Using the OM 10 for long exposures,
>
> As I understand it the OM 10 uses a combined magnet to hold the shutter
> open, there is a permanent magnet which actually holds the shutter
> curtain, and an elctromagnet that pulses to kick the shutter closed.
> The power only flows in the electromagnet as a pulse to close the
> curtain. This means that the camera should use exactly the same amount
> of power for an 10 minute B exposure as a 1000/Sec normal exposure. Is
> this right?
>
> Stuart
>
>
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