I think this is all OK except in scenario #1 the flash should be turned
off while you are trying to determine the ambient exposure since the
camera will lock onto 1/60 as soon as it senses the flash is turned on.
Also, although changing the ASA/ISO and changing the compensation dial
actually do the same thing (change the same variable resistor) you
should not lift the dial and change the ISO rating since you might
forget later. Just rotate without lifting. You might also forget to
reset the compensation dial but looking at the dial will tell you what
you did.
Chuck Norcutt
Rob Harrison wrote:
> I'm new to using flash--always been a natural light kinda guy. But even
> old dogs want to learn new tricks sometimes. I've read about this a few
> different places, but somehow still not convinced I completely get it.
>
> OK, so let's say I'm outdoors shooting a portrait against the sun. I
> want to use fill flash. Is this how I would do it?
>
> 1) With an OM-4ti...
>
> a) Let's say I have a T32 flash.
> I switch the camera to auto, set the flash to TTL. I meter the ambient
> light, set the aperture for a value that allows a shutter speed of
> 1/60th or less. Let's say I'm using Reala, and f11 works. ASA100,
> 1/60th @ f11. (But does the 4ti automatically switch to 1/60th?) I
> change the _ASA_ setting (not exposure compensation) to ASA 200. Take
> the photo. This gives me a fill of one stop under ambient light. Right?
> I can dial in any amount of compensation this way actually, in 1/3
> stop increments, up to the limit of the ASA wheel. OR...if I know I
> want TWO stops under, it looks like the T32 has a 1/4 power setting.
> Right? Or is there a simpler way (I hope)? I think what's confusing
> for me is how the TTL-OTF flash, and auto mode of the camera, interact.
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