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f3nikon:The unit from Taiwan may not be using the H/W circuit.............
.............The TTL connector we have produced is indeed a Heinrichs Weikamp Oly TTLC Converter which we have converted. As it is a customized conversion it has been agreed that we sell it under our own brand name. Matthias Heinrichs is well aware of this and in recent communications has expressed his appreciation that the Heinrichs Weikamp converters are being used in more and more products...............
...........You are all most welcome to contact us if you want more information.
Thank You,
Sam
Divervision International Inc.