MECABLITZ 50 AF-1 digital - Materiel.net
MECABLITZ 50 AF-1 digital - Materiel.net
MECABLITZ 50 AF-1 digital - Materiel.net
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8 Manual flash exposure correction<br />
The auto flash exposure mode of most cameras is adjusted to a reflection factor<br />
of 25% (the average reflection factor of flash subjects). A dark background that<br />
absorbs much of the light or a highly reflective bright background (backlit shots,<br />
for example) may result in, respectively, underexposure or overexposure of the<br />
subject.<br />
To offset these effects, the flash exposure can be adjusted manually for the shot<br />
with a correction value. The extent of the correction depends on the contrast between<br />
the subject and background!<br />
In TTL flash modes, manual flash exposure correction factors of from -3 EV (f–stops)<br />
to +3 EV (f-stops) can be adjusted on the flash unit in one-third increments.<br />
Tip:<br />
Dark subject against light background: positive correction factor. Light subject<br />
against dark background: negative correction factor.<br />
☞ Exposure correction by means of alteration of the lens aperture setting is<br />
impossible, since the camera’s automatic exposure program regards the<br />
altered aperture setting as the normal working aperture setting. When<br />
setting the correction factor, the distance shown in the display can change<br />
and be adjusted to the correction factor (depending on the camera<br />
model)!<br />
Setting procedure<br />
EV 0,7<br />
EV 0,7<br />
6,9 m Zoom <strong>50</strong> mm<br />
☛<br />
TTL<br />
• Press button — or + until „EV“ flashes.<br />
Set a negative correction factor with the<br />
button — or a positive one with the<br />
button +.<br />
The setting takes effect immediately.<br />
After about 5 seconds the display stops flashing<br />
and the setting is saved automatically.<br />
After saving, „EV“ appears in the display with the correction value set in place<br />
of the aperture factor.<br />
Press the button — or + until „EV“ without a EV<br />
correction factor is shown.<br />
The setting takes effect immediately.<br />
After about 5 seconds the display stops flashing and<br />
the setting is saved automatically.<br />
After saving the aperture factor appears once again.<br />
☞<br />
☛<br />
EV<br />
6,9 m Zoom <strong>50</strong> mm<br />
Manual flash exposure correction is only possible in TTL flash mode if the<br />
camera supports this function (consult the camera’s operating instructions)!<br />
If the camera does not support this function, the adjusted correction<br />
will have no effect.<br />
For some camera models, the manual flash exposure corrections must be adjusted<br />
on the camera. If this is the case, no correction value will appear on the<br />
flash unit display.<br />
After the shot, remember to cancel the TTL flash exposure correction in the<br />
camera!<br />
Attention: Strongly reflecting objects in the motif can have a negative impact<br />
on the camera’s automatic exposure. The photograph will be<br />
underexposed. Remove reflecting objects or set a positive<br />
correction value.<br />
TTL<br />
99<br />
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