Vivitar DSLR AF Flash Pro 648 Power Zoom VIV-PRO-648 - Manual (Page 8)

Mounting the Flashgun onto Your Camera
-7-
• For Type CAN, NIK & PEN flashes: Loosen the lock ring. Slide the
flash into the camera accessory shoe. Tighten the flash with the
lock ring.
• For Type OLY & PANA flashes: Insert the mounting foot of the
flash into the camera accessory shoe and press "LOCK" to lock
the flash in place.
• For Type SON flashes: Insert the mounting foot of the flash into
the camera accessory shoe. This will lock the flash in place.