metering

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I have a canon rebelxt when do you us center weight, and evaluative metering? I use the partial (spot) for portrait but I do not understand when to use the center weight or the evaluative...magic widget

pathfinder

I think it really comes down to understanding how each metering mode works and adjusting from there via the histogram.

As a practical matter, I meter with Evaluative Metering at all times.

I very occaisionally use spot metering if I am shooting with long teles and have a specific reason.

I know from experience how much + or - Exposure Compensation I plan to dial in for most back lit shots, and I understand that metering snow fields or coal piles WILL require a change in exposure different than a straight metered reading.

Sunny 16 is a good subject to understand when shooting oout of doors also.