the first generation original series Carl Zeiss High Speed (HS) lenses were first manufactured in 1975. They were among the first Zeiss lenses to have the Zeiss T multicoating, which increases contrast and overall light transmission (T-stop) and reduces flare. They were only available with ARRI Bayonet lens mounts. This mount had been introduced in the mid-1960's on the Arriflex 16SB, 16BL and 35II-C and was ARRI´s lens mount until the introduction of Arri PL mount in the early 1980´s.
