I've been seeing my 1DS3 doing much better calculating exposure when I use center weighted averaging rather than it's standard Evaluative mode when used in high contrast situations, or even medium contrast, or even pretty much any situation. Anyone else see this?
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I don't know what you'll find is "best."
I think there are probably 2 sensible metering modes:
1) Spot metering. Painstakingly evaluate your highlights and shadows and set the exposure. Maybe good for manual exposure... if you're going to set it and then take a bunch of shots quickly enough that you won't be able to adjust exposure for each shot.
2) Matrix metering. Heck, take a quick shot, look at the histogram, dial in exposure compensation, and get the RIGHT exposure. With practice, it takes about 2 seconds maximum to get a perfect exposure if you just use the histogram and compensate accordingly. Especially if you're using ETTR and have highlight warnings. Snap a picture, dial in EC, snap again, ensure you have no blinkies, and you're done.