Focal Length	Iris	Close Focus	Weight
18	T2.0 - 22	30 cm / 12"	1300 g
25	T2.0 - 22	30 cm / 12"	1500 g
35	T2.0 - 22	35 cm / 1'2"	1400 g
50	T2.0 - 22	60 cm / 1'12"	1450 g
75	T2.0 - 22	91 cm / 2'12"	1200 g
135	T2.0 - 22	140 cm / 4'7"	1600 g

Front Diameter: 95mm