Bosch LTC-3793-51 Specsheet
CCTV | IR-Corrected Zoom and Varifocal Lenses
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IR-Corrected Zoom and Varifocal Lenses
IR corrected for operation with high performance day/
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night and monochrome cameras
1/3-inch and 1/2-inch formats
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High-quality optics
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DC-iris and Video-iris models
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Varifocal and zoom lenses
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Zoom lenses with pre-positioning
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Reliable, robust construction
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With the introduction of true day/night cameras, CCTV
cameras have become more versatile - and now lenses must
match the wide range of light conditions covered by those
cameras. (Infrared) corrected lenses provide fully adjusted
and sharp focused images in daylight and at nigh when used
in conjunction with IR illuminators. This makes IR lenses the
best choice for high performance true day/night cameras.
The IR range includes 1/3-inch and 1/2-inch format lenses.
The 1/3-inch lenses are used exclusively for 1/3-inch type
cameras. The high design standards of the 1/2-inch lenses
make them a perfect match for both 1/3-inch and 1/2-inch
type cameras. When used with 1/3-inch type cameras, the
1/2-inch lenses provide a more "telephoto" effect.
For auto iris control, all lenses use the standard four-pin
EIAJ connector, which fits directly into the camera's iris
output. Varifocal lenses are DC iris direct drives, while zoom
lenses have Video-iris drives.
For zoom focus and pre-position control, the lenses are
fitted with an 8-pin DIN connector. The 18x zoom lens also
features manual iris override. Impressive optical quality is a
result of ED glass elements, aspherical lenses, and multilayer coatings. These lenses maintain focus to IR
wavelengths of 950 nm.
The mechanical construction is robust enough to withstand
frequent control operations of the iris, zoom, and focus
functions.
Auto iris Connector (Solder side view)
1 Power
2 Not Used
3 Video
4 Ground
Installation/Configuration Notes
40.4
1.59
5.3
0.21
44.4
1.75
38.3
1.51
24.6
0.97
3.6
0.14
50.3
1.98
4
0.16
8.6
0.34
31.8
1.25
62
2.44
4
0.16
75.5
2.97
42.5
1.67
33
1.3
134.8
5.31
112.5
4.43
22.3
0.88
47.3
1.86
1/4-20UNC
75.5 (2.97)
42.5 (1.67)
33 (1.3)
154.5 (6.08)
33 (1.3)
121.5 (4.78)
17.526 (0.69)
58.5 (2.3) 4 (0.16)
1/4-20UNC
66 (2.6)
Ø65 (2.56)
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Dimensions LTC 3364/21
Dimensions LTC 3764/20
Dimensions LTC 3664/30
Dimensions LTC 3664/40
Dimensions LTC 3774/40
Dimensions LTC 3783/51
Dimensions LTC 3793/51
Dimensions LTC 3674/20
Zoom/Focus Connector (Solder side view)
1 Pre-pos. Zoom Pot. Wiper 5 Focus Motor Control (+=near)
2 Focus Motor Return 6 Zoom Motor Return
3 Pre-pos. Focus Pot. Wiper 7 Pre-pos. Pot. Supply
4 Zoom Motor Control (+=tele) 8 Pre-pos. Pot. Return
Ordering Information
LTC 3364/21 Varifocal Lens IR corrected
1/3-inch, 2.8 – 6 mm, DC-iris, CS-mount
F1.4-200, 4-pin
LTC 3664/30 Varifocal Lens IR corrected
1/3-inch, 3.0 – 8 mm, DC-iris, CS-mount
F1.0-360, 4-pin
LTC 3664/40 Varifocal Lens IR corrected
1/3-inch, 2.8 – 11 mm, DC-iris, CS-mount
F1.4-360, 4-pin
LTC 3674/20 Varifocal Lens IR corrected
1/3-inch, 7.5 – 50 mm, DC-iris, CS-mount
F1.3-360, 4-pin
LTC 3764/20 Varifocal Lens IR corrected
1/2-inch, 4 – 12 mm, DC-iris, C-mount
F1.2-360, 4-pin
LTC 3774/30 Varifocal Lens IR corrected
1/2-inch, 10 – 40 mm, DC-iris, C-mount
F1.4-360, 4-pin
LTC 3783/51 Zoom Lens IR corrected
1/2-inch, 8.5 – 85 mm, Video-iris, C-mount
F1.6-360, 4-pin
LTC 3793/51 Zoom Lens IR corrected
1/2-inch, 8.6 – 154 mm, Video-iris, C-mount,
F2.5-360, 4-pin
Accessories
S1374 Adapter
converts C mount lens to CS mount camera
LTC3364/21
LTC3664/30
LTC3664/40
LTC 3674/20
LTC 3764/20
LTC 3774/30
LTC 3783/51
LTC 3793/51
S1374
IR-Corrected Zoom and Varifocal Lenses | 3
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