14 focal lengths available:
10mm T2.1      14"
12mm T2.1      10"
14mm T2.0      9"
16mm T2.1      10" (6" Close Focus Alternative Available)
20mm T2.1      9"
24mm T2.1      14" (6" Close Focus Alternative Available)
28mm T2.1      11"
32mm T2.1      24" (8" Close Focus Alternative Available)
40mm T2.1      16"
50mm T2.1      18"
85mm T2.1      3'
100mm T2.1      40"
135mm T2.1      5'
180mm T3.0      5'

ZEISS Standard Speeds arrived between 1964 and 1975. They were designed for use with Arriflex film cameras and offer a smooth pleasing image with cool color rendition and medium contrast. Many iterations have been released through the years, with the most recent models featuring standard 0.8 gearing on the focus and iris rings.