Metz 76 MZ-5 - Manual (Page 85)

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Manual zoom adjustment
If the flash unit is used with an SCA adapter from the SCA 300 system, a
standard foot 301 or a camera unable to transmit the focal length data, the
zoom position of the flash reflector must be set by hand. In this case, M-
Zoom appears in the display.
If you use a zoom lens and do not always require the full guide num-
bers and range of the flash unit, you can leave the position of the
zoom reflector at the beginning focal length of the zoom lens. This will
guarantee that your picture is always completely illuminated. In this
way you can spare yourself the continuous adjustment of the focal
length of the lens.
Example:
You use a zoom lens with a focal length range of 35 mm to 105 mm. In this
example you set the position of the zoom reflector to 35 mm!
Manual adjustment of the zoom position in A zoom
The zoom position of the reflector can also be changed when operating the
flash unit with an adapter from the SCA 3002 system and a camera that
transmits data in order e.g. to achieve particular lighting effects (e.g. hot spot
etc):
After saving, M-Zoom appears in the display.
Returning to A-Zoom mode
• Tap the camera release lightly so that data exchange can take place bet-
ween the flash unit and the camera.
• Change the zoom position repeatedly until A-Zoom appears in the display.
10. Manual flash exposure correction
The automatic exposure system of the mecablitz and most cameras is based
on a subject reflection factor of 25 % (average reflection of subjects shot with
flash). A dark background that absorbs a great deal of light, or a highly
reflective bright background (e.g. when shooting against the light), can result
in overexposure or underexposure.
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To compensate for the aforementioned effect, the exposure can be manually
corrected with a correction value adapted to the given photographic situa-
tion. This correction value depends on the contrast between subject and
background!
In the TTL and A mode of the flash unit, manual flash exposure correction
factors of -3 EV to +3 EV (f-stops) can be set in one-third increments.
Many cameras have a setting element for exposure corrections which can
also be used in the TTL flash mode. Please refer to the explanations in the
operating instructions for the given camera and the SCA adapter.
Dark subject in front of a bright background:
Positive correction value (approx. 1 to 2 f-stops EV).
Bright subject in front of a dark background:
Negative correction value (approx. -1 to -2 f-stops EV).
Entering a correction value may result in a change of the maximum flash ran-
ge indicated on the display of the flash unit and its adaptation to the correc-
tion value (depending upon the camera type and SCA adapter)!
A manual flash exposure correction in TTL flash mode can only be
made if the camera and the SCA adapter (only SCA 3002 system)
support this function (see operating instructions of camera and SCA
adapter)! If the camera or the SCA adapter do not support this func-
tion, the correction value set will remain ineffective.
The manual flash exposure correction value must be set in various camera
types. No correction value is then shown in the display of the flash unit.
11. Fill-in flashes
11.1 Automatic TTL fill-in flashes
Most cameras automatically activate fill-in flash when in full mode, program-
me auto mode “P” and in the image control modes during daylight (see
camera operations instructions).
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705 47 0041.A4 76MZ-5 digital 15.03.2007 8:28 Uhr Seite 85