ABSTRACT
In Figure 36.1a is shown an optically compensated zoom lens with two moving groups. It zooms from 3.94 to 7.87 (100–200 mm) focal length and covers the full frame 35-mm motion-picture format (1.225 diagonal). It is shown in the long focal length position. Table 36.1a gives the lens prescription at this long focal length. (a) System layout, (b) zoom movements, and (c) MTF plots. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315222295/bd2ad0d9-a48e-40ac-8986-c51474069cbd/content/fig36_1.tif"/> Lens Prescription, 100–200-mm Focal Length, Optical Zoom
Surface
Radius
Thickness
Material
Diameter
1
7.8887
0.3238
LF5
3.200
2
4.7233
0.5496
N-LAK8
3.200
3
5.9991
1.4933
2.940
4
5.0160
0.2568
SF4
2.780
5
2.3243
0.5055
N-BAF10
2.600
6
−24.2009
1.5342
2.600
7
−9.2215
0.1634
N-SK14
1.780
8
2.8425
0.2440
1.700
9
−4.1789
0.1633
N-SK14
1.700
10
2.3193
0.2800
SF4
1.800
11
31.6131
0.1318
1.800
12
54.0708
0.5507
N-SK14
1.840
13
−3.2619
0.1952
1.840
14
3.6571
0.3857
N-SK14
1.840
15
−2.9031
0.1619
SF4
1.840
16
0.0000
1.2227
1.840
17
Stop
0.1707
1.044
18
−2.1185
0.1053
N-BAF4
1.080
19
7.6501
0.1212
1.240
20
2.8668
0.1538
N-BASF2
1.240
21
−6.3400
0.5338
1.240
22
−27.9533
0.1053
SF2
1.240
23
2.3426
0.0881
1.300
24
11.1843
0.1569
N-LAK8
1.300
25
−2.5766
4.8360
1.300
26
0.0000
0.0000
1.234
Distance from first lens surface to image =14.433.