The actual problem with the MZ/ZX bodies is that the eyepieces are poorly corrected uncoated plastic. They are ok for AF, but not-so-great for manual focus. MZ-S is the only exception.This gets argued every so often. There appears to be a very minor difference which most people don't notice. Someone even came up with an actual difference in the specs once, but I forget what it was.
regards,
Alan Chan
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