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Exceeding the display range
The flash unit can indicate flash ranges of up to 199 m or 199 ft. This display
range can be exceeded in the case of high ISO values (e.g., ISO 6400) and lar-
ge aperture openings. An arrow or triangle after the distance value indicates
that the display range has been exceeded.
6 Displays in the camera viewfinder
Examples for the camera viewfinder display:
Flash symbol flashes:
Prompt indicating that the flash unit is to be switched on or used (by some
cameras).
Flash symbol is illuminated:
The flash unit is ready for use (by some cameras)
The viewfinder in some cameras features an incorrect exposure warning func-
tion: the viewfinderís display for aperture value, shutter speed (or both) flashes
by over or underexposure.
Incorrect exposure guidelines:
• overexposure: do not use the flash!
• underexposure: switch the flash on or use a tripod and a longer exposure time.
Reasons for incorrect exposure can lay in the various exposure and automatic
programmes.
For information applicable to the displays in the viewfinder of your
camera model, refer to the camera’s operating instructions.
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7 Flash modes („Mode“)
Depending on the type of camera different TTL flash modes, manual flash mode
and high-speed synchronisation FP or HSS are available. Therefore, data trans-
fer between flash unit and camera is necessary before setting the flash mode,
e.g. by actuating the shutter release. The flash mode is set by using the
„Mode“ ባ button.
7.1 TTL-flash modes
The TTL flash modes offer a very simple method of achieving very good flash
shots. In these modes, exposure readings are taken by a sensor built into the
camera, which measures the amount of light through the camera lens
(TTL = „Through The Lens“). Here the camera automatically determines the flash
performance required for a correct exposure of the shot. The advantage of the
TTL flash modes is that all factors influencing exposure (filters, change of apertu-
re and focal length with zoom objectives, extensions for close-ups, etc.) are auto-
matically taken into account in adjusting the flash light.
If the shot was correctly lit, the correct exposure indication ብ will flash „OK“ for
about 5 seconds (see 4.2).
Please note whether there are limitations for your camera in terms of film
sensitivity for TTL flash mode (for example, ISO 64 to ISO 1000; see
camera’s operating instructions)! In analogue cameras there must be a
film in the camera to test the TTL function!
E-TTL- and E-TTL-II - flash mode
E-TTL and E-TTL-II flash modes are digital flash modes based on the further deve-
lopment of the TTL flash mode for analogue cameras. During shooting, the flash
unit emits an almost imperceptible metering preflash prior to the actual exposure.
The light reflected by the metering preflash is evaluated by the camera. The
camera adjusts the subsequent flash exposure to the photographic situation
according to the evaluation (see the camera operating manual for more details).
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707 47 0057.A2 Inh. 48AF-1C 18.09.2007 16:38 Uhr Seite 73