Technical specifications for the LN-20X. 20x optical zoom, Sony 1/2.8" sensor, 1080p30, 6-in-1 output (HD-SDI/EX-SDI/AHD/TVI/CVI/CVBS). Features WDR, HLI, 3D-DNR. For professional security systems.
LN-20X (20x Zoom) Technical Overview
1080p Auto-Zoom Camera with Multi-Format Output and Advanced
Imaging
The Lntech LN-20X is a professional-grade auto-zoom camera module engineered for integration into systems requiring detailed
long-range observation. It features a 20x optical zoom lens (5.7mm-102.6mm) coupled with a Sony 1/2.8-inch CMOS sensor, delivering 2MP (1080p) resolution. A key integration feature is its multi-format video output, supporting HD-SDI, EX-SDI, AHD, TVI, CVI, and CVBS protocols, selectable for broad DVR compatibility. Advanced image
processing includes Wide Dynamic Range (WDR), Strong Light Inhibition (HLI), and 3D Digital Noise Reduction (3D-DNR).
In-Depth Technical Analysis
1. Optical Zoom & Lens Performance
The core of the LN-20X is its 20:1 motorized optical zoom lens system. With a focal length range of 5.7mm (wide) to 102.6mm (tele), and a fast F1.8 aperture at wide angle, it provides significant flexibility in field of view adjustment
and detail capture at long distances. The lens is designed to
resolve detail sufficient for the 2MP sensor across its zoom range.
2. Multi-Format Output & Signal Switching
This camera's output can be configured to match the input
requirements of nearly any modern DVR:
Digital HD: HD-SDI (SMPTE 292M), EX-SDI (Extended HD-SDI)
Analog HD: AHD, TVI, CVI
Standard Definition: CVBS
Selection is typically made via a physical switch or OSD menu,
providing exceptional integration flexibility.
3. Advanced Image Processing
Wide Dynamic Range (120dB): Utilizes multiple exposures to capture detail in both the
brightest and darkest parts of a high-contrast scene,
reconstructing a balanced image.
Strong Light Inhibition (HLI): A specialized function to compensate for and suppress the effects
of point light sources (e.g., car headlights, direct sun) that
would otherwise cause blooming and washout.
3D Digital Noise Reduction (3D-DNR): Applies noise reduction across both spatial and temporal domains,
effectively reducing noise in low-light footage without sacrificing
too much motion sharpness.
4. System Control & Integration
Intelligent OSD: The DSD menu system offers comprehensive control over image parameters, zoom/focus
functions, and system settings. Its non-volatile memory retains all configurations after power loss.
Standardized Design: The compact form factor and standard power input (DC 12V, 10V-16V range) facilitate easy integration into various housings and systems.
Detailed Technical Specifications Table
| Category | Parameter | Detail |
|---|
| General | Model | LN-20X |
| Image Sensor | 1/2.8" Sony CMOS Sensor |
| Total Pixels | 1945(H) x 1109(V) ≈ 2.15MP |
| Effective Pixels | 1945(H) x 1097(V) ≈ 2.13MP |
| Scan System | Progressive |
| Video | Max Resolution | 1920 x 1080 (1080P) |
| Frame Rate | 1080p@30/25fps, 720p@60/50/30/25fps |
| Video Output | HD-SDI, EX-SDI, TVI, AHD, CVI, CVBS |
| S/N Ratio | >42 dB (AGC OFF) |
| Lens | Optical Zoom | 20x |
| Focal Length | f = 5.7mm ~ 102.6mm |
| Aperture | F1.8 (Wide) ~ F3.9 (Tele) |
| Angle of View | H: 62.0° (Wide) ~ 4.1° (Tele) |
| Low Light | Min. Illumination | Color: 0.24 lux; DSS: 0.125 lux |
| Day/Night | Auto (ICR), Color, B/W |
| Image Features | WDR | 120dB (Off / Low / Mid / High) |
| HLI | Strong Light Inhibition (On/Off) |
| BLC | Back Light Compensation (On/Off) |
| DNR | 3D-DNR (On/Off) |
| Privacy Mask | Up to 24 zones |
| Physical | Power Supply | DC 12V ±10% (10V ~ 16V) |
| Power Consumption | 4.2W Max (350mA @12V Startup) |
| Operating Temp. | -10°C ~ +50°C |
| Dimensions | 60 x 60 x 115 mm |
| Weight | 0.42 kg |
