Hasselblad XPan 4-90 User Manual
XPan
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 (%)
HASSELBLAD 4/90
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
LENSES
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.
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
Document ID: 3024019/0610
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LENSES
LENSES
XPan
HASSELBLAD 4/90
DEPTH-OF-FIELD DATA
Given distances are calculated for a blur circle diameter of 33 microns and do not include the effect of lens aberra-
tions.
Depth-of-field in meters
f/4 f/8 f/16 f/22
∞ 60 - ∞ 30 - ∞ 15 - ∞ 11 - ∞
10 m 8.5 - 12 7.5 - 15 6 - 30 5 - 100
5 m 4.65 - 5.4 4.3 - 5.9 3.8 - 7.5 3.5 - 9
3 m 2.87 - 3.15 2.75 - 3.3 2.55 - 3.7 2.4 - 4
2 m 1.95 - 2.06 1.9 - 2.12 1.8 - 2.25 1.75 - 2.4
1.5 m 1.47 - 1.53 1.44 - 1.56 1.39 - 1.63 1.35 - 1.7
1.2 m 1.18 - 1.22 1.17 - 1.24 1.13 - 1.28 1.11 - 1.31
1 m 0.99 - 1.01 0.98 - 1.02 0.96 - 1.05 0.94 - 1.07
To convert meters into feet, multiply by 3.281. To convert meters into inches, multiply by 39.37
Document ID: 3024019/0610
www.hasselblad.com
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