Cooke S4
focal lengths
12mm T2 c.f. 9"
14mm T2 c.f. 9"
16mm T2 c.f. 9"
18mm T2 c.f. 9"
21mm T2 c.f. 9"
25mm T2 c.f. 9"
27mm T2 c.f. 10"
32mm T2 c.f. 12"
35mm T2 c.f. 14"
40mm T2 c.f. 16"
50mm T2 c.f. 20"
65mm T2 c.f. 2'3"
75mm T2 c.f. 2'6"
100mm T2 c.f. 3'
135mm T2 c.f. 2'9"
150mm T2 c.f. 3'6"
180mm T2 c.f. 4'3"
