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IR-Corrected Zoom and Varifocal Lenses
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.
IR corrected for operation with high performance day/ night and monochrome cameras
1/3-inch and 1/2-inch formats
High-quality optics
DC-iris and Video-iris models
Varifocal and zoom lenses
Zoom lenses with pre-positioning
Reliable, robust construction
2 1
43
Auto iris Connector (Solder side view)
1 Power
2Not Used
3 Video
4Ground
Installation/Configuration Notes
40.4
1.59
Dimensions LTC 3364/21
38.3 |
1.51 |
Dimensions LTC 3664/30
44.4 |
5.3 |
1.75 |
0.21 |
Dimensions LTC 3664/40
|
|
|
4 |
|
|
|
0.16 |
|
3.6 |
50.3 |
8.6 |
24.6 |
0.14 |
1.98 |
0.34 |
|
|
|
|
0.97 |
|
|
|
Dimensions LTC 3764/20
|
62 |
31.8 |
2.44 |
1.25 |
|
Dimensions LTC 3774/40
4 |
0.16 |
|
75.5 |
|
2.97 |
42.5 |
33 |
1.67 |
1.3 |
Dimensions LTC 3783/51
|
134.8 |
|
5.31 |
112.5 |
22.3 |
4.43 |
0.88 |
1/4-20UNC
47.3
1.86
|
75.5(2.97) |
|
||
42.5 |
(1.67) |
33 |
(1.3) |
|
|
|
|
(2.6) |
(2.56) |
|
|
|
66 |
Ø65 |
|
|
154.5 (6.08) |
|
33 |
(1.)3 |
121.5 4(.78) |
17.526(0.69) |
|
1/4-20UNC
58.5 |
(2.3) |
4 |
(0.16) |
Dimensions LTC 3793/51
|
2 |
5 |
4 |
3 |
1 |
Dimensions LTC 3674/20 |
6 |
8 |
7 |
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 |
LTC3364/21 |
1/3-inch, 2.8 – 6 mm, DC-iris, CS-mount |
|
F1.4-200, 4-pin |
|
LTC 3664/30 Varifocal Lens IR corrected |
LTC3664/30 |
1/3-inch, 3.0 – 8 mm, DC-iris, CS-mount |
|
F1.0-360, 4-pin |
|
LTC 3664/40 Varifocal Lens IR corrected |
LTC3664/40 |
1/3-inch, 2.8 – 11 mm, DC-iris, CS-mount |
|
F1.4-360, 4-pin |
|
LTC 3674/20 Varifocal Lens IR corrected |
LTC 3674/20 |
1/3-inch, 7.5 – 50 mm, DC-iris, CS-mount |
|
F1.3-360, 4-pin |
|
LTC 3764/20 Varifocal Lens IR corrected |
LTC 3764/20 |
1/2-inch, 4 – 12 mm, DC-iris, C-mount |
|
F1.2-360, 4-pin |
|
LTC 3774/30 Varifocal Lens IR corrected |
LTC 3774/30 |
1/2-inch, 10 – 40 mm, DC-iris, C-mount |
|
F1.4-360, 4-pin |
|
LTC 3783/51 Zoom Lens IR corrected |
LTC 3783/51 |
1/2-inch, 8.5 – 85 mm, Video-iris, C-mount |
|
F1.6-360, 4-pin |
|
LTC 3793/51 Zoom Lens IR corrected |
LTC 3793/51 |
1/2-inch, 8.6 – 154 mm, Video-iris, C-mount, |
|
F2.5-360, 4-pin |
|
Accessories |
|
S1374 Adapter |
S1374 |
converts C mount lens to CS mount camera |
|
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