A compact unit that converts the camera's TTL signal to a light signal. The converter can be mounted on the camera's accessory shoe and can be connected to SEA&SEA strobes with Fiber-Optic Cable. TTL and manual modes can be switched by pushing the mode switch on the housing.
Compatible housings: MDX-α7II / MDX-α7III and MDX-αU.
Compatible housings: Download Compatibility Chart 
Advantages of using the Optical YS Converter and not using the camera's built-in flash
- Risk of water-ingress and flooding via the strobe bulkhead is eliminated.
- The camera's battery will last longer.
- External strobes will fire in accordance with their quickest recycle time.
- No inner reflections from camera's built-in flash.
- Compared with slave TTL, the Optical YS Converter achieves far greater accuracy in TTL exposure/output.
- Optical YS Converter is compatible with dSLR cameras that do not have a built-in flash.
Controls: Power ON/Power OFF/TTL mode (indicated by blue lamp)/Manual mode (indicated by green lamp)
* Remaining battery level is indicated by flashing LED lamp.
Auto Power Off: The converter will automatically power off if the shutter lever or the mode switch is not activated for more than one hour.
* The converter can be re-activated by pressing the mode switch.
Power Source: 2 x AAA battery (Alkaline: 3.0V / Ni-MH: 2.4V)
Power Source: (*1) Alkaline: 15 hours / Mi-MH: 12 hours (*2)
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