Is it true that the kowa cine prominar spherical lenses are based on speed panchro and super baltar optical designs?

[Edith blazek]

I ask as I've seen some say this but I've also heard that it's not true given the character of the prominars versus those other lenses so if anyone with more knowledge than me could confirm or deny that would be great.

[Simon Wyss]

They are according to this site. https://industrycamera.net/equipment/35-mm-vintage-lenses/kowa-cine-prominar-lenses/

[Edith blazek]

5 minutes ago, Simon Wyss said:

They are according to this site. https://industrycamera.net/equipment/35-mm-vintage-lenses/kowa-cine-prominar-lenses/

And lensworks also says that but the reason I'm asking here is that I don't know if that bit is just rental house conjecture where they're just saying that to boost rentals as again, some say they're not so i wanted to know if anyone definitively knew.