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dan.ivanov

A way to use TTL through optic converter

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Hello,

I’m about to order 2 Retra strobes and connect them to my Ikelite housing for the Sony A7RIII. The thing is that the housing has a 5 pin output and the Retra only accepts an optical cable. My question is, if there’s any way for me to convert the 5 pin signal coming out of the camera into an fiber optical cable and still be able to use TTL. Thank you

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I'm not aware of any external electrical to optical converters with TTL capability on the market - Retra's e-opto converter is manual-only. If you want to run TTL with that housing and camera, you will need either Ikelite strobes (DS-160/161) and Ikelite's own TTL converter, or an optical bulkhead in place of the electrical one that's included with the housing, plus a TTL-capable optical trigger such as the one recently released by UW-Technics. @Pavel Kolpakov - the person behind UW-Technics - should be able to give you more details.

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Hello Dan,

UW Technics produces Optical and Nikonos bulkheads for Ikelite housings (for usage with UWTechnics TTL-Converters). Optical Bulkhead is here:

Optical-Bulkhead-Ike-s.jpg

Your housing has 2 holes on the top. So, you can install 1 or 2 optical bulkheads, dependently on preferences.

TTL-Converter supports maximum: 2 optical + 2 electric bulkheads, simultaneously. On this housing you even can use 1 optical + 1 electric bulkhead, both in TTL, if you want to use different strobes.

Ikelite-A7III-housing-s.jpg

TTL-Converter board shape for this housing model is in development yet, but will be announced soon. Firmware as usual includes ttl-profiles for Inon, Sea&Sea, Ikelite and Subtronic strobes. Retra ttl-profile will be included too, when new strobe appears on the market.

Edited by Pavel Kolpakov

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