Dörr DCF 52 wi Notice D'utilisation page 13

Wireless TTL Flash (only for cameras featuring W-TTL)
For many objects a lateral flash is more advantageous then frontal flashing. illumination will be more
balanced and thus more convenient. The DÖRR DCF 52 Wi is fitted with the advanced wireless TTL
function. You can enjoy creative photography with multiple lightings from various directions. before
starting, you should be familiar with the following details:
Master Flash: a master flash is required to control and release one or more distant flashes. depending
on the camera model, the incorporated camera flash (nikon) can take this function and/or a computer
flash can be mounted to the camera that is ready to fulfill the master function (Nikon, Canon).
Remote Flash: the dÖrr dcF 52 wi can be used as a remote flash (distant and not connected to the
camera). You can use one or more remote flashes. there is no limitation on the number of remote
flashes set in one time.
Groups: in wireless photography you can assign remote flash units into any of the three groups:
a, b, or c. You can set the mode and output levels for each remote flash group.
Example:
• Flashes in group A work in normal TTL mode
• Flashes in group B work with TTL mode with 2/3 f-stop minus correction
• Flashes in group C work with manual flash and ¼ power ratio
depending on the camera model, different numbers of remote flash groups can be controlled.
Please read your camera's user manual.
Channels: it may happen on photo shootings, that many photographers work with similar flash techno-
logy. in order to avoid interferences, the dÖrr dcF 52 wi offers 4 channels (1,2,3 and 4) for wireless
operation. You can use the channel of your choice for communication between master and remote
flash. however, you need to make sure that both master and remote flash are set to the same channel.
Wireless TTL Flash with DÖRR DCF 52 Wi – How to Proceed:
1. Press the Mode button until the w-ttl icon
is activated, you will see the read aF light blinking at the flash front. the desired group (group a, b
or c) and channel (1,2,3 or 4) can be selected using the "^v" buttons.
2. adjust the desired flash angle using the flashe's zooM button.
3. now get the dÖrr dcF 52 wi to the desired position and be aware that:
• It should not flash directly into the camera and the sensor for wireless TTL flash is not covered.
• There is no obstacle between master
and slave flash. the sensor at the
remote flash must always be directed
towards the master flash. it is advisable
to position the remote flash in a way
that the sensor points exactly to the the
master flash. then you can turn the flash
reflector to the desired direction.
• The maximum wireless TTL flash range
is app. 10m for frontal position and
around 7m for lateral position of the
remote flash (can vary depending on
the ambient light conditions).
• The remote flashes of one group should
be position aside of each other.
• The sensitivity of the sensor for wireless
ttl flash control at the remote flash can be strongly reduced by direct sunlight. it may be
necessary to protect the flash from direct sunlight using a shade or umbrella.
4. once all flashes are positioned properly, check the settings again. now you can start taking
pictures.
Slave Function
the dÖrr dcF 52 wi can be released wirelessly by an external flash source (e.g. from another flash
unit). Press the Mode button until "s" appearson the lcd. the photo sensor is active now. Place the
flash at a desired location. the light sensitive sensor now reacts on light reflections caused by the
camera's incorporated flash or another flash and releases the dcF 52 wi simultaneously. the ttl
auto flash mode is not active in slave mode. the desired flash power can be set manually. Modern
TTL flash systems are operating with pre-flashes fired in short sequences before the main flash will
fire. To ensure that the DÖRR DCF 52 Wi will fire in slave mode simultaneously with the main flash, the
pre-flashes must either be switched off or they must be ignored by the photo sensor. the number of
pre-flashes fired depends on the camera and flash model. In case of doubt please check and count
them.the dÖrr dcF 52 wi provides a total of 4 settings which can be activated with the
while the flash is in slave mode "s:
S0 – DÖRR DCF 52 Wi fires simultaneously when triggered. Pre-flashes are not ignored.
S1 - DÖRR DCF 52 Wi ignores the 1st flash and fires when triggered by the 2nd flash
S2 - DÖRR DCF 52 Wi ignores 2 flashes and fires when triggered by the 3rd flash
S3 - DÖRR DCF 52 Wi ignores 3 flashes and fires when triggered by the 4rd flash
The power saving function will not work in slave mode.
Note: The slave sensor is located at the front flash housing below the AF red light cover. The flash
should be directed toward the external flash source for slave mode photography. The sensor ranges
app. 10m depending on the ambient light conditions.
show up on the lcd. when the wireless ttl mode
Group A
approx.
5 to 7m
>=30¡
Master flash >=30¡
approx.
5 to 7m
less than
approx. 10m
Group C
⌄
and
Group B
⌃
keys
13