Metz MECABLITZ 64 AF-1 digital Pentax - Manual (Page 181)

181
Setting the mode of operation
• Switch on the flash unit with the
ባ
button.
The start screen appears. Thereafter, the
flash unit always switches on with the
mode of operation that was used last .
• Press the sensor button of the displayed
mode of operation on the touch display as
many times as it takes for the display for
selecting the mode of operation to appear.
• Press the sensor buttons on the
touch display and select .
• Press the sensor button on the
touch display.
• Tap the shutter release to transfer data bet-
ween the flash unit and the camera.
SPOTBEAM
SPOTBEAM
8 Manual flash exposure
correction
The auto flash exposure mode of most cameras
is adjusted to a reflection factor of 25% (the
average reflection factor of flash subjects).
A dark background that absorbs much of the
light or a highly reflective bright background
(backlit shots, for example) may result in,
respectively, underexposure or overexposure
of the subject.
To offset these effects, the flash exposure
can be adjusted manually for the shot with a
correction value. The extent of the correction
depends on the contrast between the subject
and background!
In TTL flash modes, manual flash exposure
correction factors of from -3 EV (f-stops) to +3
EV (f-stops) can be adjusted on the flash unit
in one-third increments.
Tip:
Dark subject against light background: posi-
tive correction factor.
Light subject against dark background:
negative correction factor.
Exposure correction by means of alteration of
the lens aperture setting is impossible, since
the camera’s automatic exposure program
regards the altered aperture setting as the
normal working aperture setting.
When setting the correction factor, the
distance shown in the display can change
and be adjusted to the correction factor
(depending on the camera model)!
+ k
0.8- 9.0 m
F
5,6
M-
Zoom 35 m
m
PTTL
i
EV
MODE
O
q p
STROBO
SPOTBEAM
REMOTE MASTER
SPOTBEAM
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