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Hasselblad HC 3,5/50 II User manual

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Specication subject to change without notice. www.hasselblad.com
1
DATASHEET
HCD 3,5/50-II
GENERAL LENS DATA
Focal length 50,7mm
Equivalent 35mm focal length
1
34,2 mm
Aperture range 3,5 - 32
Angle of view diag/hor/vert 53,4 x 40 format 67°/56°/44°
Angle of view diag/hor/vert 44 x 33 format 57°/47°/36°
Length/diameter 116 mm/85 mm
Weight 975 g
Filter diameter 77 mm
1
Horizontal coverage between 53,4 x 40 and 36 x 24 compared
CLOSE FOCUS RANGE DATA
Minimum distance object to lm 0.60 m
Maximum image scale 1:8,8
Corresponding area of coverage 47 × 35 cm
Corresponding exposure reduction 0 f-stop
LENS DESIGN
11 elements in 7 groups
FOCUS TYPE
Rear focusing
ENTRANCE PUPIL POSITION
134 mm in front of the lm plane
(at innite focus setting)
The entrance pupil position is the correct
position of the axis of rotation when making
a panorama image by combining individual
images of a scene.
An all-round, versatile lens, incorporating a moderate wide-
angle effect, and featuring advanced optical design with rear
focus mechanism. Corner-to-corner illumination is very even
at all aperture settings, and distortion and stray light are
extremely well controlled.
Specication subject to change without notice. www.hasselblad.com
2
DATASHEET
HCD 3,5/50-II
RELATIVE ILLUMINATION
Innity setting
When images are imported to Phocus, light
fall-off is automatically removed.
DISTORTION
Innity setting
When images are imported to Phocus, distortion is
automatically removed.
MTF
Modulation Transfer as a
function of image height at
innite focus setting.
Sagittal slit orientation drawn
with continuous line and
tangential with dashed. White
light. Spatial frequencies 10,
20 and 40 lp/mm
200903 - HC 50-II - V8 EN
1
0
-1
-2
Distortion [%]
0 10 20 30
Image height [mm]
1.0
0.2
f/8
f/3,5
0.4
0.6
0.8
0
0 10 20 30
Image height [mm]
Relative Illumination
100
80
60
40
20
0
0 10 20 30
f/3,5 f/8
Image height [mm]
MTF [%]
100
80
60
40
20
0
0 10 20 30
Image height [mm]
MTF [%]
/