Installation in MARELUX underwater photo housing
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Open underwater housing. Using hex wrench
unscrew 2 bolts from vertical plastic podium (camera
support) bottom side. Delete the podium from the housing.
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Insert CR2032 batteries into TTL-Converter. Before
installation check that “plus” terminal of each battery is in Up
position.
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(Optional).
In case of using Electric Sync cord
synchronization, connect an electric bulkhead cable plug into
Ci-11 socket on the board.
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Install TTL-Converter to its place. Carefully insert
both LEDs into optical holes of the housing. Screw 2 bolts,
fixing the plastic frame upper part.
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Install vertical plastic podium back to its place.
Screw 2 bolts, fixing the podium.
Optional Accessories for MARELUX housing
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UW Technics Nikonos style Bulkhead (M14 screw) with cable and Ci-11 connector.
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UW Technics Ikelite style Bulkhead (M14 screw) with cable and Ci-11 connector.
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UW Technics S-6 style Bulkhead (M14 screw) with cable and Ci11 connector.
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Electric Bulkheads are optional products and must be purchased separately.
External cable connections for underwater strobes
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TTL-Converter maintains synchronization for underwater strobes by Fiber Optical cable and by electric sync cord as
well, separately or even simultaneously.
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Maximum 2 Fiber Optic cables can be used (via housing optical bulkheads). It is possible to connect 2 underwater
strobes.
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Maximum 1 electric sync cord can be connected to the TTL board (via housing electric bulkhead).
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Dual
electric sync cords (“Sea&Sea”, “Ikelite”) are supported by TTL-Converter as well. Using a dual sync cord, it is
possible to connect 2 underwater strobes.
Initial Settings
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Set TTL-Converter onboard rotary switch according your strobe type:
➢
0 - Hardwire Manual Mode
➢
1 - Inon Z-240
➢
2 - Sea&Sea YS-D1
➢
3 - Sea&Sea YS-D2
➢
4 - Sea&Sea YS-250, Subtronic Pro-270
➢
5 - Ikelite DS-161, Ikelite DS-160, Ikelite DS-125
➢
6
– Inon Z-330
➢
7
– Retra Pro
➢
8
– Subtronic Pro-160
➢
9
– Inon S-2000
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Set and check camera settings before underwater shooting:
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Set “Mechanical Shutter” type in camera menu. You also can use “e-Front Curtain Shutter”. But don’t set fully
Electronic Shutter by menu, it does not supported by this TTL system.
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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 underwater photographer can control Aperture and Shutter Speed manually.
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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 (1/250 is maximum “sync speed”) when using mono-flash underwater strobes.
-
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 2
00….400 for the best resolution and TTL accuracy underwater.
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Use recommended apertures F8-F11 for Wide-angle underwater photo, and F11-F22 for Macro photo.
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Use other settings recommended by your camera User’s Manual.
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