Technical Data
23
10 Technical Data
Signature Prime
12/T1.8
15/T1.8
18/T1.8
21/T1.8
Optical Parameters
Focal length
12 mm
15 mm
18 mm
21 mm
MOD
from sensor plane
(minimum marked
distance)
0.35 m / 14"
0.35 m / 14"
0.35 m / 14"
0.35 m / 14"
MOD from lens
front
0.07 m / 2.6"
0.1 m / 4.3”
0.13 m / 5.1”
0.13 m / 5.1”
Magnification ratio
at MOD
1:7.0
1:10.3
1:9.2
1:8.2
Entrance pupil po-
sition (related to im-
age plan, in direc-
tion to object plane)
262.5 mm /
10.34"
203.0
mm / 7.99"
189.5
mm / 7.46"
183.4
mm / 7.22"
Angle of view H-V-D
for LF Open Gate
114.2° /
94.0° / 124.0°
102.0° /
81.2° / 112.9°
91.4° / 71.0° /
102.6°
82.7° /
63.0° / 94.0°
Physical Dimensions
Front diameter
134 mm / 5.28"
156 mm / 6.14"
114 mm / 4.49"
114 mm / 4.49"
Max. housing diam-
eter
135 mm / 5.31"
157 mm / 6.18"
115 mm / 4.53"
115 mm / 4.53"
Length from flange
239 mm / 9.41”
197 mm / 7.75"
178 mm / 7.01”
178 mm / 7.01”
Weight (lens only)
2.8 kg / 6.2lb
2.8 kg / 6.1lb
2.0 kg / 4.4lb
1.9 kg / 4.2lb
Lens barrel
Magnesium
Magnesium
Magnesium
Magnesium
Interfaces
Lens mount
LPL
LPL
LPL
LPL
Lens data system
LDS-2
LDS-2
LDS-2
LDS-2
Flange focal dis-
tance
44 mm
44 mm
44 mm
44 mm
