Trigger 1: Delay - Cognisys HIGH SPEED SHUTTER Owner's Manual

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exposure, be sure to increase "Pwr Toff" to the duration of your exposure (plus some safety
margin).
== Global Config ==
LCD Backlight: 10
Pwr Off: Trig 2
>
Pwr Toff: 250.0 ms
Not quite yet done! We don't want sequential mode to infinitely wait for the sensor to get
triggered. The longer the camera is in bulb mode the greater the chance for "noisy" sensor
pixels appearing in the shot. The camera needs to be periodically "refreshed" with a new frame.
Thankfully this is easy using StopShot's sequential timeout feature, "Seq Tout". Press the
SELECT button until the ">" indicator is next to the "Seq Tout" option (it may require going
through several pages of settings). Press the UP or DOWN button to adjust the value. This will
be dependent on your specific camera model, but a good starting point is in the 20-60 second
range:
== Global Config ==
> SEQ Tout: 60.0 sec
Once that is set, press the CONFIG button to return to StopShot's main screen.

3.4.3 Trigger 1: Delay

StopShot's "Trigger 1" output is connected via a shutter cable to the camera. The "Trigger 1"
output will control the camera's shutter. The camera will be in bulb mode with the actual
exposure being determined by the HSS shutter and the flash. Since the camera needs some
time to recognize that the shutter release is no longer active, a delay state is needed. To
configure "Trigger 1" as delay, press the SELECT button until the ">" indicator is next to "Trigger
1". Press the CONFIG button to open up the timer configuration settings. Press the UP or
DOWN buttons until the "T Mode" is changed to "Delay".
The default parameters for "Delay" are shown below:
>
T1 Mode: Delay
# Pulse: 1
Pulse1: 500.0 ms
Toff: 100.0 ms
Since "Trigger 1" will be connected to the camera, we need to have the output stay active for
the entire duration (keeping the shutter button pressed on the camera). To do this, we need to
adjust the "Pulse1" setting to "Latched". This means the output will stay active until the
sequence completes. To change "Pulse1" to "Latched", press the SELECT button until the ">"
indicator is next to the "Pulse1" parameter. Then press and hold the DOWN button until the
"Pulse1" setting turns to "Latched" (the time will count down and when it nearly reaches zero it
->
->
->
8

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