Housing Conversion Circuitry
This housing contains Ikelite designed and patented Conversion Circuitry. Once attached, turn the strobe on first before turning on the camera.
When used with Ikelite DS Substrobes the Conversion Circuitry provides real Nikon iTTL flash exposure with over and underexposure compensation from +1 1/3 to - 1 1/3
The Conversion Circuitry also offers Manual exposure control with 3 1/2
The Conversion Circuitry is powered by the Ikelite DS Substrobe when connected to the housing with the 4103.51 single or 4103.52 dual sync cord. When using two strobes with the dual sync cord, the primary strobe connected to the cord without the red band, must be turned on to power the Conversion Circuitry. Always keep both strobes connected to your dual sync cord underwater. Do not exchange your secondary strobe for a dust cap which may not be waterproof.
Setting the Conversion Circuitry Strobe ID Switch
On the housing back is a switch for setting the DS Substrobe ID. Set the switch to the Model of DS Substrobe being used.
When using dual strobes of different models such as a DS51 and a DS161, set the ID switch to DS51 or the smaller strobe.
TIGHTEN HOLDOWN BOLT
WITH COIN
OR SCREWDRIVER
Strobe ID Switch 
DS DS
Set
DS Substrobe
to TTL Mode
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