Thanks John, for asking.
I want the sky metered correctly. I want to be able to produce a rich sunset with the couple exposed appropriately so that it doesn't look like someone held a flashlight on them.
The aperatures were all over the place as the light was shifting rapidly and I was trying to find the right combination of shutter speed, ISO setting and aperature.
Michael reported in one of the other threads that the SHUTTER SPEED should be the factor for determining ambient, and the APERTURE should be the factor determinng flash.
So my understanding of this is as follows: I meter for the sky to create the beautiful sunset. If the meter in the camera suggested ISO 100, f/11, 1/60, then I would need to make adjustments for a larger aperture in order to drag the shutter and get more ambient light in. So, If I kept ISO at 100, f/8, that would allow for 1/30...which is getting closer to a setting that would allow for a richer sunset.
Once I determined that, I would set my Metz on Auto, f/11, ISO 100. However, I need to get the Metz off camera so I can place it closer to the couple to figure out if this is actually what I am wanting.
I suggest this "formula" based upon Mark McCall's posting in "More Fun With the Metz" where he exposed the background at f/4.0 and set his Metz at f/5.6. (Just now looking back at that thread, I see that he had his shutter set at 1/100. It was evening and perhaps that shutter speed will allow for enough ambient to create the portrait he did.
http://www.photocamel.com/forum/wedd...etz-flash.html)
One of the things that doesn't make sense to me is how I can set both a low aperture AND a low shutter speed to drag the shutter AND have the flash work correctly.
Did all of this babble make any sense?