I have a few questions on flash photograaphy that always puzzle me.
Q1. Say you metered an object and is -1/3 then you use your flash in auto mode. Does this mean that the flash will automatically compensate to the right exposure ?
Q2. Say you still metered at -1/3 then still using automatice mode but with flash compensation set to +2/3. What is the exposure this time ? Is it (-1/3) + (+1/3) + (+2/3) ? or is it (-1/3) + (2/3) ?