C LENS, 1/2-INCH, 8.5 TO 85MM, IR CORRECTED, AUTO IRIS
By: Bosch
Extreme CCTV Telex RTX Cameras DVRs & Monitors

Bosch : LTC 3783/51
Description
The Bosch LTC 3783/51 Zoom Lens is a C-mount type lens with a focal length range of 8.5-85mm and an iris control range of F1.6-360. It provides a 10x zoom, and is IR-corrected for easy switching between color and B&W as per changes in ambient lighting. The lens supports 1/2” image format and enables the camera to deliver crisp picture quality.
Features
LTC 3783/51 features include:
- Focal length of 8.5-85 mm
- Iris control range of F1.6-360
- 10x zoom
- Wavelength of 400-950 nm
- IR-corrected for easy switching between color and B&W as per changes in ambient lighting
- Pre-positioning settings
- Supports 1/2" image format
- Zoom lens is C-mount type
- 4-pin standard plug
Specifications
Imager Size | 1/2" |
Mount Type | C |
Focal Length | 8.5-85mm (10x) |
Aperture | Color: F1.6-360 IR: F1.6-180 |
Wavelength | 400 to 950 nm |
Iris Operation | Iris Control: 4-pin Video-iris Op. Voltage: 8 to 15 VDC Response Speed: approx. 2 sec Op. Current: 40 mA Input Signal: VS or V Impedance: 5 kOhm Iris Accuracy: +/- 20% of V-signal Sensitivity: 0.5 - 1.0Vpp of V-signal Autoiris Override: Yes |
Zoom Operation | Zoom control: Motor drive Zoom Speed: 5 sec (adjustable) Op. Voltage: 6 to 12 VDC Op. Current: 60 mA |
Focus Operation | Focus control: Motor drive Focus Speed: 5 sec (adjustable) Op. Voltage: 6 to 12 VDC Op. Current: 60 mA |
Angle of View | 1/3" Wide: 31.3 x 23.5° 1/3" Tele: 3.28 x 2.47° 1/2" Wide: 41.5 x 31.3° 1/2" Tele: 4.34 x 3.28° |
Minimum Object Distance (M.O.D.) | 5' (1.5m) |
Back Focal Distance | 0.3" (14.7mm) |
Flange Focal Distance | Flange back distance: 17.526mm |
Operating Temperature | 14 ~ 122°F (-10 ~ 50°C) |
Dimensions (WxL) | 3 x 5.3" (76 x 135mm) |
Weight | 2 lb (900g) |
Resources & Documents
zoom-lenses.pdf | Datasheet |