Operating Instructions

X synchronization
An X switch is used for synchronization with electronic flash units and flash bulbs. The flash socket (6) is provided
with a knurled ring used to clamp the plug. To plug in or remove the flash plug, match the red marks on the flash
socket. For electronic flash units, use the time of symbol arrow or a longer time. Set a time of 1/15 second for quick
type flash bulbs, a time of 1/8 second for slow type flash bulbs. Making use of the self-timer requires the release
button to be pressed until flashing (use an locking cable release). Determine the diaphragm number by referring to
the operating instructions of the flash unit or its setting table.
Lens changing
Not much effort is involved in lens changing. Turn the knurled ring (18) of the bayonet mount counterclockwise to
the stop and remove the lens. Insert new lens so the red mark of the lens scale points upwards and lens arresting
screw engages the recess in the camera body lens support. Turn the knurled ring (18) clockwise to lock the lens.
When working with lenses of focal lengths exceeding 300 mm which are not provided with automatic diaphragm, the
automatic diaphragm lever in the camera is recommended to be swiveled off its normal working position as it may