ZEISS Standard Speeds T1.3

Focal Length Aperture Close Focus Front Diameter Weight (lbs)
8mm T2.1 8" 80mm 1.2
9.5mm T1.3 10" 80mm 1.6
16mm T1.3 8" 80mm 1.6
25mm T1.3 10" 80mm 1.4
50mm T1.3 2' 4" 80mm 1.8