TRIBE7
TECHNICAL SPECS
FOCAL LENGTH
IMAGE CIRCLE
MAX ILLUMINATION
MAX ILLUMINATION
CLOSE FOCUS
WEIGHT
mm
mm max illumination
in
cm
lb
kg
27
55
13.0
34.0
3.6
1.7
37
60
18.0
45.7
3.4
1.6
47
60
17.5
44.5
3.2
1.5
57
60
19.0
48.3
3.5
1.6
77
60
26.0
66.0
3.0
1.4
107
62
27.0
68.5
3.2
1.4
137
62
32.0
81.3
3.2
1.5
APERTURE
T1.9 to T22 across the range
FRONT DIAMETER
104mm for all lenses
IRIS SYSTEM
non-linear, 14 blade
Image Distortion
less than -4% / +0.5%
Transmission waveband
420nm to 680nm
Color and tonality
matched across the range
Magnification Shift
less than 4% (from ∞ to close focus)
Focus and Iris Backlash
negligible
Flange system
PL mount (options on request)
Focus Scale and Drive
windowed
left/right in feet (meters on request)
270-degree rotation
gearing: 142 teeth, 0.8mm mod, 6mm width, 115.2mm dia
left/right in feet (meters on request)
270-degree rotation
gearing: 142 teeth, 0.8mm mod, 6mm width, 115.2mm dia
Aperture Scale and Drive
non-windowed left/right
90-degree rotation
gearing: 134 teeth, 0.8mm mod, 3mm width, 108.8mm dia
90-degree rotation
gearing: 134 teeth, 0.8mm mod, 3mm width, 108.8mm dia
Operating Temperature Range
-20 to +45 C