OMG!
Hi John, we haven't heard from you in years!
Nice of you to drop in and let those of us who wondered know that you are OK.
Moose
On 5/19/2011 10:40 AM, John Lind wrote:
> The amount of light admitted to the film plane in TTL is ambient @ selected
> f-stop& 1/60th plus the necessary duration of flash to satisfy the TTL
> metering.
>
> There are some occasions for desiring to increase ambient by using 1/30th
> (versus opening aperture by a stop) and you cannot do this in TTL, only in
> "Auto" or "Manual" modes. TTL always sets shutter speed to 1/60th *if* it
> needs to fire the flash to get enough light. If ambient is sufficient TTL
> will use shutter speed 1/60 or faster based on selected aperture; flash can
> be forced by stopping down if possible, the increased DoF is acceptable, and
> flash is desired. I've done the latter to force fill by stopping down just
> barely enough to activate the flash.
>
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|