Hasselblad CFE 4/180 manual Lenses, Sonnar

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LENSES

SONNAR

CFE 4/180

CLOSE FOCUS RANGE DATA:

 

Minimum distance object to film

1.55 m

Corresponding distance object to front lens

1.33 m

Maximum image scale

1: 6.5

Corresponding area of coverage

36 x 36 cm

Corresponding exposure reduction

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.

Document ID: 3020074/0610

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

 

 

 

f/4

 

 

 

 

 

f/8

 

 

 

100

 

 

 

 

 

100

 

 

 

 

 

80

 

 

 

 

 

80

 

 

 

 

MTF (%)

60

 

 

 

 

MTF (%)

60

 

 

 

 

40

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

20

 

 

 

 

 

0

 

 

 

 

 

0

 

 

 

 

 

0

10

20

30

40

 

0

10

20

30

40

 

 

Image height (mm)

 

 

 

Image height (mm)

 

1/2

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Contents Sonnar LensesCFE 4/180 DEPTH-OF-FIELD Data Depth-of-field in meters140 ∞ 70 ∞ 35 ∞ 17 ∞ 20 m 17.5 15.5 10 m 10.8 11.5 55 m