[QUOTE=Aja B;1572907]I'm quite certain only three changes to the body : 1) a special focus screen that outlined the data-imprint area, 2) a small mask in the film gate that prevented a corresponding section of film from being exposed to the 'taking' image and 3) the word 'Data' engraved next to the serial number on the top plate. Any standard F2 body/finder combination could be used with the MF-10/MF-11.
I suspected that the changes were minor, thank you for all the information... very helpful.
One more question, how does the MF-10 built-in flash get triggered? Is it done by connecting it's flash terminal to ???