I've got a query re metering, regarding all 3 of my G-series cameras. I have my camera set to multiple metering and spot focusing. When I focus on something I half-press the shutter, which I've always thought fixes both focus and exposure, and then recompose. But often, although the image looks ok in the EVF, after I've taken it, it is, say, over-exposed. Or it may look over-exposed before taking it, but the final result is acceptable. I assumed that when looking through the EVF, WYSIWYG. Any explanations or advice gratefully received!