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7. CONTROLLING FLASH TIMES
With Siros L, you can control the flash time in two different ways:
7.1
Controlling flash time using the “speed" setting in the main menu
In the main menu you can set the flash time of the monolight to “speed”. This setting calculates the
fastest possible flash time for the chosen energy level. This also causes the flash colour to shift
slightly towards the blue region.
1) Press the rotary controller (1) to enter the main menu
2) Turn the rotary controller (1) until you reach the menu item “speed”
3) Confirm this selection by pressing the rotary controller (1)
4) Use the rotary controller (1) to select the option “on” or “off”
5) Confirm this with the rotary controller (1)
When the “speed” function is switched off, the unit is in “optimum” mode.
7.2
Controlling flash time using
HS
in the main menu
When the
HS
function is activated, this permits flash duration up to 1/8’000 s. For this is a camera
specific
RFS 2.2
transmitter necessary.
1) Press the rotary controller (1) to enter the main menu
2) Turn the rotary controller (1) until you reach the menu item “
HS
”
3) Confirm this selection by pressing the rotary controller (1)
4) Use the rotary controller (1) to select the option “on” or “off”
5) Confirm this with the rotary controller (1)
1)
2)
3)
4)
5)
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8. RELEASE
Siros L monolights are supplied with the
RFS
2 module built in.
8.1
RFS
2 module (radio frequency system)
For
RFS 2.1 / RFS 2.2
flash control, the channel (studio address) must correspond to the trans-
mitter's channel. The studio address is set in the menu at position “st”. The lamp channel is defined
in the menu under “lamp”. See Section 10.3 for more information about changing the colours of the
cognition lights.
With the radio transceiver, you can define and set the individual lamps as you wish. To learn how to
do this, please see the operating instructions for the transceiver. The transceiver is not included in
the scope of supply as standard.
8.2
Photocell (cell)
The photocell can be switched on and off using the menu function “sync” (11). When it is active, the
blue
LED
beside the “cell” label is illuminated. After the first flash of a sequence, the active photocell
is deactivated, and the blue
LED
beside the “sync” button (11) blinks. Pressing the “test” button
switches it on again.
8.3
Synchro socket (12)
The sync cables, 5 m (16.4 ft) (Art. No. 34.111.00) or 10 m (32.8 ft) (34.112.00), can be fitted to the
socket for cable release (12).
8.4
“test“ button (4)
Using this button, the monolight can be triggered manually. The flash can be triggered as soon as
90 % of the set energy level is reached. The visual “ready” indicator, on the other hand, only illu-
minates when 100 % is attained.
9. HS FUNCTION
In combination with the
RFS 2.2
transmitter, you can use all Siros L monolights with extremely fast
shutter speeds. For example, with ambient light, even with the aperture wide open (selective focus),
the image can be underexposed correctly with up to 1/8000 s and Siros L still lets you set dominant
and creative light effects.
All you need for this is the
RFS 2.2
transmitter, which is available for Canon, Nikon and Sony
cameras. In addition,
HS
must be activated on all Siros L units. This modifies the flash curve and
guarantees, in combination with
RFS 2.2
, correct exposure with no limits on your choice of shutter
speed.
Please read the operating instructions for the
RFS 2.2
transmitter to learn more about optimum
use of the
HS
function.
While working in HS mode you are only able to use flash power level 4 to 10 with Siros L.
