LENSES
SONNAR
CFE 4/180
CLOSE FOCUS RANGE DATA: |
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Minimum distance object to film |
1.55 m |
Corresponding distance object to front lens |
1.33 m |
Maximum image scale |
1: 6.5 |
Corresponding area of coverage |
36 x 36 cm |
Corresponding exposure reduction |
0.6 f-stop |
ENTRANCE PUPIL POSITION
94 mm in front of the film plane. (at infinite focus setting):
The entrance pupil position is the correct position of the axis of rotation when making a panorama image by combining individual images of a scene.
Document ID: 3020074/0610
MTF
Modulation Transfer as a function of image height at infinite focus setting.
Sagittal slit orientation drawn with continuous line and tangential with dashed. White light. Spatial frequencies 10, 20 and 40 lp/mm
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f/4 |
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f/8 |
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100 |
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100 |
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80 |
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80 |
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MTF (%) |
60 |
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MTF (%) |
60 |
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40 |
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40 |
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20 |
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20 |
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0 |
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0 |
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0 |
10 |
20 |
30 |
40 |
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0 |
10 |
20 |
30 |
40 |
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Image height (mm) |
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Image height (mm) |
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1/2
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