The owner words : This lens rocks. Pairs really well with the super speeds and has a cool rainbow flare.  This is one of the only other Optex original lenses. I used this lens on both my Canon C70 and Arri 416. Happy to share that footage if you reach out. It’s a fantastic versatile wide angle with far superior contrast/rendering at T/2 than the Zeiss or Elite super speed 8mm.
The Optex 8mm features a rectilinear design with minimal barrel distortion compared to a fisheye wide angle lens. With a fast T2 aperture, a 15 inch close focus, along with integrated 0.8 focus & iris gears. I had the lens collimated in Michigan a few months ago and I’m happy to put you in touch with that lens tech as well.
Front and back caps are included. This lens was used so I can’t call it “mint” but it’s darn close. Very pretty, no scuffs, obviously no issues with the glass: no scratches, no fungus, no haze, no separation, there is micro dust but honestly it’s exceptionally little for a lens of this age. You really have to search to see any micro dust. It’s fantastic.