LENSES
www.hasselblad.com
1/2
Document ID: 302
40
19/06
10
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
30
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.
