Jack,
I can answer that question... it is not a locking button, although placed where it is it sure looks like it. That button is actually for ISO/Exposure Compensation (pg. 41 of the manual). Presently there is no locking mechanism for changing the light metering mode.
I can answer that question... it is not a locking button, although placed where it is it sure looks like it. That button is actually for ISO/Exposure Compensation (pg. 41 of the manual). Presently there is no locking mechanism for changing the light metering mode.