>...but once you add the grip and extra battery >it can go up to at least 2 more pounds.
I've read that too, but I don't think it's accurate. The MB-D10 grip with an EN-EL3E battery installed weighs 13oz (0.81lb). With an EN-EL4a installed it would be a little heavier, but I doubt very much if it would be 2lb.
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