As I understand it when focusing is achieved with the shutter button (cf 4-0) E-TTL gives most weight to the active focus point, so white wedding dresses and black suits can cause havoc. The behaviour of the system seems especially unpredictable when you focus and re-frame before exposing. FEL, as you observe, takes its reading from the centre spot metering area.

Tim


Andrew Lopez-Calvete wrote:

Not sure that it meters from the active focus point. When you hi the FEl on the MkII the centre point flashes and the resulting exposure does suggest that its reading from the centre focus point. It could be that it is on spot and that's the only point that works in that configuration?

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