Olympus Shoe 4 for OM1N (310,T20)/OM2N (310,TTL With T20,T32)
ACCESSORY SHOES 1, 2, 3. Used with OM-1 and OM-2 cameras for connection with the flash units. The Shoe 4 is used with all later models, and assures full performance including viewfinder indications. The Shoe 3 gives earlier OM-2 models TTL Auto Flash capability. The Shoe 1 is for earlier OM-1 models.