Originally Posted by
AndyOptom
According to my Zeiss lab, Synchrony HD is a rebranded SolaOne, and Synchrony HDV is a rebranded SolaOne HD (if anyone else can verify the truth of this, do let us know!).
I did notice the engravings are the same as the Sola engravings on the earlier batches, but I haven't used these in a while (switched over to Hoya recently for various reasons), so it does seem feasible. Another possible indicator was that Synchrony HD had a choice of two corridors, while HDV had the corridor chosen based on fitting heights (which was the case with SolaOne HD, if memory serves me correct).
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