A calculator to compute fill flash "percentage" from TTL flash compensation is at
Flash pictures are Double Exposures- Outdoors
We hear manual flash users talking about using 20% or 30% fill flash.
Well, TTL offers less coarse adjustment to do the same thing.
-1 EV fill is 33%, and -2 EV fill is 20%. But TTL also offers third stops, but Sekonic doesn't.
One of these days, one of these calculators surely will impress someone.
Flash pictures are Double Exposures- Outdoors
We hear manual flash users talking about using 20% or 30% fill flash.
Well, TTL offers less coarse adjustment to do the same thing.
-1 EV fill is 33%, and -2 EV fill is 20%. But TTL also offers third stops, but Sekonic doesn't.
One of these days, one of these calculators surely will impress someone.