LENSES
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Document ID: 3020517/0610
CLOSE FOCUS RANGE DATA:
Minimum distance object to film
0.42 m
Corresponding distance object to front lens
0.25 m
Maximum image scale
1: 4.7
Corresponding area of coverage
26 x 26 cm
Corresponding exposure reduction
0.4 f-stop
DISTAGON
FE 2.8/50
100
80
60
40
20
0
0
10
20
30
40
Image height (mm)
f/2,8
MTF (%)
100
80
60
40
20
0
0
10
20
30
40
Image height (mm)
f/5,6
MTF (%)
MTF
Modulation Transfer as a func-
tion of image height at infinite
focus setting.
Sagittal slit orientation drawn
with continuous line and tan-
gential with dashed. White
light. Spatial frequencies 10,
20 and 40 lp/mm
ENTRANCE PUPIL POSITION
136 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 com-
bining individual images of a scene.
