Metz MECABLITZ 50 AF-1 digital Canon Bedienungsanleitung Seite 104

The synchronisation of the second curtain (REAR) cannot be set
on the flash unit
• data transfer has not occurred between the flash unit and the camera.
Actuate shutter release.
• the camera does not support REAR flash mode.
• the flash unit is set to automatic high-speed synchronisation HSS.
Deactivate HSS (see 7.3).
The setting for manual TTL flash exposure correction has no effect.
• The camera does not support manual TTL flash exposure correction on the
flash unit.
Automatic switching to the flash sync speed fails to occur.
• The camera has a between-the-lens shutter (as do most compact cameras),
Switching to sync speed is therefore unnecessary.
• the camera operates with high-speed synchronisation HSS
(camera settings).
Switching to sync speed does not occur in the process.
• The camera operates with shutter speeds that are slower than the flash sync
speed. Depending on the camera mode, there is no switch to flash sync speed
(see the camera's operating instructions).
The shots have shadows in the bottom of the image.
• Because of parallax error between lens and flash unit, close-up shots may not,
depending on the focal length at the bottom of the image, be fully illuminated.
Tilt the main reflector downwards or turn the wide-angle diffuser in front of
the reflector.
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The shots are too dark.
• The subject is beyond the range of the flash unit.
Note: Using bounce flash reduces the range of the flash unit.
• The subject contains very bright or highly reflective areas. The metering
system of the camera or flash unit is deceived as a result.
Set a positive manual flash exposure correction, e.g., +1 EV.
The shots are too bright.
• In close-up shots, overexposure (shots that are too bright) may result if the
shutter speed is faster than the flash sync speed. The minimum distance from
the subject should be at least 10% of the maximum flash range indicated on
the display.
The aperture (f-stop) cannot be adjusted on the flash unit.
• There is an exchange of digital data between the flash unit and camera.
Adjustment of the aperture is not possible!