Operating Instructions

159
TTL flash exposure metering occurs with a center-
weighted characteristic via separately arranged
silicon photo diodes, which are located next to
the multiple field exposure metering cell on the
bottom of the camera, protected from stray light.
Using appropriate adapters (available from
photographic dealers), several flash units can be
fired simultaneously or the TTL control can be
carried out without a cord.
Flash ready and control displays (only with
SCA 3501/3502M3 adapters)
With the camera power up (see "Turning the
camera on / Activating the electronics / - the
exposure metering system”, p. 131) and using the
SCA 3501/3502M3, the flash symbol (
1 , 2.4) in
the viewfinder and in the rear panel display (3.5)
shows the flash unit’s charging level and therefo-
re the readiness of the flash.
• Flash symbol flashing: The flash unit is current-
ly charging. As the flash is not yet ready, the
camera behaves as it would with no flash and
works in the set mode. If the shutter is re-
leased, the flash does not fire.
• Flash symbol constantly lit: Flash is ready. 
Pencil of rays for TTL flash metering