I’m on my second 5DMK2 body. Same problem with both bodies. During a series of several exposures of the same subject/light/settings, one of the exposures is underexposed by about a half stop. The histogram for that exposure shows the variation, the metadata is remains the same. Before I talk with CPS, are there any 5DMK2 owners that have noticed that, or could try a burst of exposures to see if that occurs? Many thanks if you can compare notes/exposures.