Zeiss precursor to the loved “mk2 super speed” 16mm format lenses. These are NOT 3 iris blade B speed lenses. They were referred to as Zeiss “Hi-Speed” Lenses.

This 12mm has smooth turning focus and aperture rings. The rear element has cleaning marks. To me personally I’ve never seen these marks in my usage of this lens. The front element is clean. No fungus. Front lens cap included.

Lens is Arri Bayonet Mount. This lens purchase includes an RAF MFT to Arri Bayonet adapter with a rear adapter cap. Lens adapter secured lens well.