Hasselblad Camera Lens CFE 4 180 User Manual

LENSES

SONNAR

CFE 4/180

CLOSE FOCUS RANGE DATA:

Minimum distance object to ﬁlm

Corresponding distance object to front lens

Maximum image scale

1.55 m

1.33 m

1: 6.5

Corresponding area of coverage

Corresponding exposure reduction

36 x 36 cm

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 com-

bining individual images of a scene.

MTF

f/4

f/8

100

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

Image height (mm)

1/2