Hasselblad 4/90 Camera Lens User Manual


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LENSES
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Document ID: 3024019/0610
CLOSE FOCUS RANGE DATA:
Minimum distance object to film 1.0 m
Corresponding distance object to front lens 0.9 m
Maximum image scale 1: 9
Corresponding area of coverage 22 x 58 cm
Corresponding exposure reduction 0.3 f-stop
XPan
HASSELBLAD 4/90
100
80
60
40
20
0
0 10 20 30
Image height (mm)
f/4
MTF (%)
100
80
60
40
20
0
0 10 20 3
0
Image height (mm)
f/8
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
58 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.