Accessory Shoes

Summary	Main Characteristics	Notes - Related Units
These four Accessory Shoes can be mounted on the appropiate camera (either the OM-1, OM-1n, OM-2 or OM-2n) pentaprism housing to support the electronic flash unit and complete the synch circuit. Accessory Shoe 1 is primary intended for the OM-1, It will fit the OM-2 too, but TTL "OTF" flash is not possible. It will not fit the OM-1n or OM-2n. Accessory Shoe 2 can only be used with the OM-2 (it will not fit the OM-1, OM-1n or OM-2n). With the Quick Auto 310 Flash, TTL "OTF" flash can be achieved. With a T flash, TTL "OTF" flash is not possible. Accessory Shoe 3 can also only be used with the OM-2 (it will not fit the OM-1, OM-1n or OM-2n). With a T Flash, TTL "OTF" flash can be achieved. With the Quick Auto 310 Flash, TTL "OTF" flash is not possible. Accessory Shoe 4 can only be used with the OM-1n and OM-2n (it will not fit the OM-1 or OM-2). It has two dedicated contacts for the flash ready/flash OK viewfinder LED and TTL "OTF" flash with the OM-2n and a T series flash. With the Quick Auto 310 flash, TTL "OTF" flash is not possible.	Cordless, direct hot shoes. Can be attached to, and detached from the camera by turning the clamping knob, permitting smooth camera handling when the flash is not used.	With the OM-1 and OM-2, the FP/X Flash Selector must be set to X for electronic flash units. With the OM-1n and OM-2n, once the Accessory Shoe 4 is attached, X synchronization is automatically achieved on the X contact of the Shoe, independently of the position of the FP/X Flash Selector. The arrows labelled 'Fix' (Accessory Shoe 1 and Accessory Shoe 2) or 'Lock' (Accessory Shoe 3 and Accessory Shoe 4) indicate the direction in which the clamping knob must be turned to attach the Accessory Shoe. On Accessory Shoe 4, this direction is opposite to the other three models. No excessive force must be used when attaching an Accessory Shoe once resistence is felt. No excessive force must be used on the flash when it is attached to or detached from an Accessory Shoe, or while it is attached on an Accessory Shoe.