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Re: [OM] f stop adjustments with F280 flash

Subject: Re: [OM] f stop adjustments with F280 flash
From: "John Hudson" <13874@xxxxxxxxxx>
Date: Tue, 21 Jan 2003 12:28:52 -0400
----- Original Message -----
From: <Jez.Cunningham@xxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, 21 January, 2003 12:05 PM
Subject: Re: [OM] f stop adjustments with F280 flash


> I would say it depends if you dialed up the -1 in the aperture setting or
> the ISO/ASA setting?

Aperture setting

> And if the 'AUTO' mode was the Camera or the Flash?

Auto mode on camera. The F280 does not have an Auto mode.

> br
> jez

>
>
> "John Hudson" <13874@xxxxxxxxxx>@Zuiko.sls.bc.ca on 21-01-2003 04:16:30 PM
>
> Please respond to olympus@xxxxxxxxxxxxxxx
>
> Sent by:    owner-olympus@xxxxxxxxxxxxxxx
>
>
> To:    "LIST - Olympus" <olympus@xxxxxxxxxxxxxxx>
> cc:
> Subject:    [OM] f stop adjustments with F280 flash
>
>
> The close up image I posted of our young cat was taken with an OM4T / 90mm
> f2 macro / F280 flash on camera. The camera to subject distance was about
> three feet.
>
> The aperture used was f5.6 or f8 and the exposure mode was set to "Auto".
> On
> a gut feeling that the proximity of flash to subject was abnormally close
I
> dialled up a minus 1 exposure factor on the camera. The density of the
> negative looks OK.
>
> My question is ........ did dialling up a minus 1 exposure factor have any
> impact on the exposure of the negative? When used without flash the minus
1
> dial up would result in a one stop under exposure. When exposing with F280
> flash does the interaction of the camera with the flash gun override any f
> stop compensation one may have set?
>
> John Hudson
>
>
>
>
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