# 4 1 0 0 . 5T T LS L A V ES E N S O R Frequently Asked Questions

Why don't you build the TTL Slave Sensor into the strobe? A TTL slave sensor built into the strobe can not work properly unless the strobe attached to the camera is considerably more powerful. We introduced the first cordless TTL slave sensor in the mid-nineties, and proved the best performance is achieved by putting the sensor in a small housing that can be aimed at the strobe attached to the camera, assuring the sensor will not be confused by the flash it controls. How dependable is the Remote TTL Sensor? The Sensor may be even more dependable than dual cords. It provides consistent performance requiring only that it is aimed at the strobe attached to the camera; and/or aimed so it will not be confused or blinded by the light from the strobe to which it is attached. How accurate is the Remote TTL Sensor? The TTL Slave Sensor is designed for use with Film and dSLR cameras. It is NOT reccommended for use with point and shoot digital cameras. It triggers and quenches the strobe to which it is attached, but is not fast enough to mimic their preflash and TTL. The EV Manual Controller is recommended for use with these cameras. Can the Sensor be confused? Light fluctuations caused by wave action may provide false triggering at very shallow depths. The Sensor will also react to the flash from another photographer. This may provide him with an exciting photograph; or it may destroy his photograph depending on where your strobe is aimed. Will the Remote Sensor work with other strobes? The Remote Sensor attaches to and works with all current gray color Ikelite DS Substrobe models. It will be tripped by any underwater strobe from any manufacturer, but can only be attached to and operate Ikelite DS model Substrobes.

Can the Remote Sensor be triggered by non-Ikelite strobes? The Remote Sensor can be tripped by any underwater strobe from any manufacturer. Surface strobes in an underwater housing will not always activate the Remote Sensor because their flash duration may be too short; and short flash duration is certainly not advantageous for providing color saturation in underwater photos. Many surface strobes dedicated to their particular camera offer exciting above water capabilities; but most of their features are not applicable or an advantage when used underwater; and their cost with a waterproof housing may actually exceed the cost of an underwater strobe with faster recycle times and wider angle coverage. How long will the batteries last? The Sensor uses the ready light power from the DS SubStrobe for power. Why does my Substrobe auto-fire when attached to the Sensor? Water leakage at the connector, and light fluctuations caused by wave action may cause the strobe to auto-fire. Check also that the Sensor has not leaked, which would be a manufacturing defect unless the Sensor has been subjected to a hard jolt. How do I attach the Sensor to TLC arms ? The rubber mount supplied with the Sensor can be softened by holding it under hot tap water for several minutes. This will allow it to be forced over the 1" diameter ball on the end of these arms even though their use is "against company policy."

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