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Conversion circuitry in the housing allows the latest Ikelite DS model SubStrobes to provide real eTTL and eTTL2 flash control as dictated by the camera. The circuitry is powered by the SubStrobe which is attached with a single #4103.51 or #4103.52 dual sync cord. These cords are identifiable by their blue band.

The circuitry powers up automatically when the strobe is turned on, lighting the yellow LED under "TTL" on the label indicating the system is ready to use.

eTTL Controls

The arrow buttons under "Mode" on the label provide up to two f/stops over or under flash exposure compensation in half/stop increments. Minus one f/stop is shown in this photograph.

eTTL Controls

Push both buttons simultaneously for one second to change from eTTL to Manual strobe control. The yellow LED under "M" on the label illuminates, and the red LED shows "F" indicating full power. The arrow buttons access the eight manual power settings in half/stop increments.

eTTL Controls
NOTE:

Current DS model SubStrobe circuitry has been updated to provide optimum performance with all current systems. DS-50 and DS-125 SubStrobes produced before September, 2004 send audible ready and confidence signals to the camera for four seconds after taking a photo as per old Nikonos protocol. This interferes with required communication for new TTL digital cameras. Removal of this signaling allows these strobes to operate correctly with current digital protocol. See serial numbers below. Updated strobes still operate fine in all installations including Nikonos.
* DS-50 SubStrobes can NOT be converted to DS-51 specifications.


DS-50 Substrobes

* SubStrobes with Serial Number below 63,850 can NOT be updated to operate correctly with the latest TTL conversion circuitry.

* SubStrobes with Serial Number between 63,850 and 69,999 require upgrade of electronics to operate. Cost of update depends on strobe circuitry. Strobe must be returned to the factory for evaluation to provide an estimate of upgrade cost.

DS-125 Substrobes

* SubStrobes with Serial Number below 2,500 can NOT updated to operate correctly with the latest TTL conversion circuitry.

* SubStrobes with Serial Number between 2,500 and 4.999 require upgrade of electronics to operate. Cost of update depends on strobe circuitry. Strobe must be returned to the factory for evaluation to provide an estimate of upgrade cost.


Older Substrobes may be sent directly to Ikelite for updating of circuitry. No prior authorization is required. Return shipping charges will be added to final repair cost.


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