Century, Optex, Elite, Optar

Focal Length Aperture Close Focus Front Diameter Weight (lbs)
3.5mm Century T2.8 1' 123mm / 80mm 1.2
6mm S2000 T1.9 1' 87mm 2.2
4mm Optex T2..0 2' 150mm 1.7
5.5mm Optex T2.0 8" 95mm 1.8
20mm Elite T1.3 10" 80mm 2
35mm Elite T1.3 10" 80mm 2.2
8mm Optar T1.3 10" 80mm 1.4