Trigger 3: Delay; Camera Settings; Flash Settings - Cognisys HIGH SPEED SHUTTER Owner's Manual

means that 50 millionths of a second after the cross-beam sensor detects an object, the shutter
will open.

3.4.5 Trigger 3: Delay

Trigger 3 is not used for the shutter, so it can remain at delay. Just be sure that on the main
screen of StopShot that it is set to "off". The final main screen display should look like the
following:
== StopShot ==
> Delay 1: 500.0 ms
XBS A&B 2:
Delay 3: off

3.5 Camera settings

There are a few camera settings that need to be adjusted. The camera should have bulb mode
enabled since StopShot is controlling the refresh rate.
Focus mode should be set to manual focus. We don't want to spend our precious high speed
shutter time waiting for the camera to focus – it will never make it. Remember to take
advantage of the HSS's "focus" mode by pressing the "manual" button (discussed 3.2 Manual
Button).
Single shooting mode. The camera should be smart enough to know that when you're in bulb
mode that you don't want to take continuous pictures, but it is worth at least mentioning.
The aperture will need to be adjusted to give you the proper depth of field for what you're
photographing. F/14 is a good starting point.
The ISO setting also comes into play since you'll be juggling a small aperture and a fast flash.

3.6 Flash settings

The flash(es) will need to be configured for manual operation. More light is better, right?
Welllll. If you've been using StopShot for water drop photography you're (painfully) aware of
the fact that the higher the power, the longer the flash duration. The maximum flash power
will be dependent on what you are photographing. A relatively slow moving moth has nothing
on a bee moving its wings at 230 times a second, or a mosquito at 400 beats per second. If the
wings are blurred you're likely at too high of a flash power. We'd recommend starting off with
1/32 power and adjust as necessary.
SEQ
50 us
10