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Re: [OM] Hep! Dr. Flash needs... um, flash help

Subject: Re: [OM] Hep! Dr. Flash needs... um, flash help
From: <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sun, 28 Dec 2008 02:17:29 +0000
Correct for TTL mode where the camera is in control of the flash exposure.  For 
auto or manual flash where the only control available to the camera is the 
shutter speed you wouldn't get uneven exposure nor underexposure  but you could 
get overexposure.

Dr. Flash


>  -------Original Message-------
>  From: Wayne Harridge <wayneharridge@xxxxxxxxxxxxxxx>
>  Subject: Re: [OM] Hep! Dr. Flash needs... um, flash help
>  Sent: Dec 27 '08 23:45
>  
>  >
>  > Hmmm,
>  > So what happens with an OM-2 with a similar scenario?  Would
>  > the flash  in
>  > normal auto trip the shutter faster than the synch speed
>  > resulting in an  uneven
>  > exposure?
>  > A. Curious Mike
>  >  
>  
>  You wouldn't get uneven exposure as the shutter would be fully open when the
>  flash fired assuming the ambient light level wasn't high enough to give you
>  a shutter speed < 1/60.  The OTF sensor would detect sufficient light for
>  the exposure from the flash and close the shutter.  If there was not
>  sufficient light from the flash the OTF sensor would keep the shutter open
>  until the ambient light completed the exposure.
>  
>  ...Wayne
>  
>  
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