There are Focal-branded lenses for which I wish to identify the manufacturer.
I have read that Focal is the Kmart house brand for optical equipment (cameras, lenses, binoculars, etc). They also appear to have encoded the manufacturer in the serial number, so in principle, I just need to find a list of applicable manufacturer codes. I have so-far been unable to find such a list.
What are the manufacturer codes for lenses that have been rebranded Focal (Kmart)?