Technical Specifications - Cooke S4 Prime Lenses - courtesy of Cooke Optics, Leicester U.K.
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Units
12mm
S4/i
14mm
S4/i
16mm
S4/i
18mm
S4/i
21mm
S4/i
25mm
S4/i
27mm
S4/i
32mm
S4/i
35mm
S4/i
40mm
S4/i
50mm
S4/i
65mm
S4/i
65mm SF
75mm
S4/i
100mm
S4/i
135mm
S4/i
150mm
S4/i
180mm
S4/i
300mm
S4/i
T-stop Range
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2-T22
T2.8-T22
Angular Rotation of Iris Scale
degrees
96
96
96
96
96
96
96
96
95
94
93
92
92
92
91
92
92
94
78
Miniumum Marked Object Distance
mm
inches
225
9
250
9
225
9
250
9
250
9
250
9
250
10
300
12
350
14
400
16
500
20
700
27
700
27
750
30
900
36
800
30
1050
42
1300
51
2100
84
Close Focus from Lens Front
mm
inches
47
2.0
50
2.0
47
2.0
64
2.5
85
2.5
64
2.5
110
4.5
152
6.0
170
6.9
216
8.5
330
13
473
20
453
19.2
584
23
724
28.5
564
20.7
841
33.8
1063
41.7
1846
74
Angular Rotation to MOD Endstop
degrees
270
270
270
270
270
270
270
300
300
300
300
300
300
300
300
340
300
300
300
Maximum Diagonal Angle of View for Super 35 Format
degrees
103
94
86
80
71
62
58
50
46
41
34
26
26
22
17
13
11.5
9.5
5.7
Length from Front of Lens to Lens Mount
mm
inches
126
5.0
126
5.0
126
5.0
113
4.5
113
4.5
113
4.5
113
4.5
128
5.0
128
5.0
141
5.5
125
4.9
125
4.9
145
5.7
125
4.9
141
5.5
184
7.3
157
6.2
185
7.3
202
7.95
Max Front Diameter
mm
156
110
110
110
110
110
110
110
110
110
110
110
110
110
110
110
125
136
136
Total Weight
kg
lbs
3
6.5
2.2
4.8
2.45
5.40
1.75
3.85
2.0
4.4
1.6
3.5
1.60
3.55
1.85
4.0
1.90
4.20
2.0
4.4
1.5
3.3
1.60
3.55
2.25
4.95
1.75
3.85
2.0
4.4
2.25
4.95
3.5
7.7
4.3
9.45
4.7
10.35
Maximum Format Cover
30mm diameter (Super 35mm format)
Focus Scales
Two opposing focus scales - metric or footage. Scales marked from infinity to MOD
Focus Drive Gear
140 teeth 0.8 metric module x 6.0mm wide x 98mm from image plane
140 teeth 0.8 module x 6.0mm wide x 99mm from image plane (300mm)
Iris Scales
Two opposing linear T-scales - whole and third stops marked
Iris Drive Gear
114 teeth 0.8 metric module x 4.0mm wide 84mm from image plane
134 teeth 0.8 metric module x 2.5mm wide x 80.5mm from image plane (300mm)
Iris Drive Gear for LDS Lens
136 teeth, 0.8 metric module x 6.0mm x 79.5mm from image plane
Internal Front
Fitting Filter
Internal thread for filter adapter M105 x 0.75 pitch (12mm and 14mm not applicable)
M120 x 1.0 pitch (150mm)
M131 x 1.0 pitch (180mm, 300mm)

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