External cable connection to underwater strobes
!
TTL-Converter maintains synchronization for underwater strobes by Fiber Optical cable connection and by electric
cable connection as well.
!
Maximum 2 Fiber Optic cables can be used (via housing optical bulkheads). It is possible to connect 2 underwater
strobes.
!
IMPORTANT!
Dual fiber optical cables usually don’t support reliable TTL operation via optical bulkheads, because of
their optical connector construction. For TTL operation are recommended only single construction fiber optical cables.
!
Maximum 1 Electric cable can be connected (via housing electric bulkhead).
!
Dual electric cable (“Sea&Sea” or “Ikelite”) are supported by TTL system at electric output as well. Using dual cable, it
is possible to connect 2 underwater strobes simultaneously.
Initial Settings
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Set and check camera settings before underwater shooting:
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Set Camera mode (“M”, “P”, “A”, “S” etc.), as is your preference. For underwater shooting it is recommended to use “M”
mode, so the user can set aperture and shutter speed manually.
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Set appropriate Exposure Metering (“Multi”, “Spot”, “Center”) according to the shooting conditions. The right type of
Exposure Metering is the key setting for accurate TTL work. In the case of wrong setting, the shot may be over
exposed, or under exposed.
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Set camera’s “Flash Exposure Compensation” (and “Exposure Compensation”) to “0 ev”, as initial setting.
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Set appropriate ISO. Recommended to use ISO 100 to 400 for best the resolution and TTL accuracy underwater.
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Set Aperture and Shutter Speed according to the actual underwater conditions and shooting task. Do not exceed 1/250
shutter speed when using a strobe.
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Use recommended apertures F8-F16 for Wide-angle underwater photo, and F16-F22 for Macro photo.
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Use other settings recommended by your camera User’s Manual.
Shooting in TTL mode
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Set TTL-Converter onboard rotary switch according your strobe type:
"
0
-
Manual mode (TTL protocol is disabled)
"
1 - Inon Z240 / Z330
"
2 - Sea&Sea YS-D1
"
3 - Sea&Sea YS-D2
"
4 - Sea&Sea YS-250
"
5 - Ikelite DS-161 / DS-160
"
6 –
reserved
"
7 – Subtronic Pro-270
"
8 – Subtronic Pro-160
"
9 – Inon S2000
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Set main dial switch on the underwater strobe body to TTL mode. Please refer to strobe’s User Manual to choose
appropriate mode (Z330, Z240 set to “S-TTL”, YS-D1/D2 set to “DS-TTL”, YS-250/DS-161/DS160 set to “TTL”).
!
Set the dial (+/-Ev correction) on the underwater strobe body to “0 ev” position, as initial setting.
!
Using Z240 / Z330 strobe, pay attention:
1) Pre-flash must be in “Push” position.
2) Using optical synchronization, set right dial switch on the strobe body to “0ev” (position “12 o’clock”), but using
electrical wire synchronization set right dial switch to “ttl” mark as fixed position (“9 o’clock”).
3) In case of optical synchronization, TTL correction (+/-) is available by the strobe dial switch “+/-Ev” and also by the
camera controls via “Flash Exposure Compensation”. The final correction value is the sum of these two corrections.
Pay attention: In case of electric wire synchronization, the adjustment (+/-) by the strobe dial is unavailable on most of
underwater strobes, but still available by camera controls using “Flash Exposure Compensation”.
!
Connect TTL-Converter Hot Shoe plug to the camera Hot Shoe socket. Switch ON the camera. TTL-Converter activates
automatically (switch ON) when user pushes camera Shutter Release Button for shooting or focusing. Device goes to
standby mode (switch OFF) automatically a few seconds later (based on input from the camera), or after disconnection
from camera Hot Shoe socket.
!
Camera recognizes Sony compatible TTL device on the Hot Shoe socket and confirms the compatibility by the “Flash”
symbols
on the service screen.
!
In Flash Mode menu set “Fill-flash”, “Slow” sync, or “Rear curtain” sync, depending on the shooting tasks:
