
Part of the family: Lenses
Varifocal lens, 2.8-12mm, 960H, 1/3"
- Part number:
- LVF-4000C-D2812
The 2.8-12mm 960H varifocal lens provides adaptable, high-quality optics for security monitoring. Featuring a 1/3-inch format and DC-iris control, this lens delivers visibility across changing light conditions.
- Varifocal lenses with 960H optical resolution
- High-quality optics
- 1/3-inch formats
- Reliable, robust construction
- DC-iris models
Technical Documents
- Varifocal lens, 2.8-12mm, 960H, 1/3" – Data sheetDownload PDF
Data sheet · 318 KB
Part of the family
Lenses · 12 models

LVF-5005C-S1803
Varifocal lens, 1.8-3mm, 5MP, CS mount
The 1.8-3mm, 5MP varifocal lens delivers high-quality optics for advanced video security. Featuring robust construction and variable focal length, it supports visibility across environments and conditions.
View Details
M118VG1250IR
Varifocal lens, 12-50mm, 5MP, CS mount
Designed for reliable security monitoring, this 12-50mm 5MP varifocal lens delivers high-quality optical clarity and adaptable focal lengths. Its robust construction and DC-iris control provide the dependable foundation needed for accurate video analytics and confident, real-time understanding.
View Details
LVF-5003C-P2713
Varifocal lens, 2.7-13mm, 3MP, CS mount
Engineered for everyday security applications, this 3MP varifocal lens delivers reliable, high-quality optics and adaptable focal lengths. Its robust construction ensures continuous, clear imaging, providing the dependable visibility required to support accurate video analytics and confident real-time understanding.
View Details
LVF-5005C-S0940
Varifocal lens, 9-40mm, 5MP, CS mount
The 9-40mm 5MP varifocal lens delivers high-quality optics for advanced video security. Featuring robust construction and variable focal length, it supports visibility across environments and conditions.
View Details
LFF-8012C-D35
Fixed lens, 35mm, telephoto, megapixel
The Ultra Megapixel Lenses deliver exceptional optical resolution for detailed telephoto coverage at extended distances. Built for stadiums and perimeter security, these robust lenses ensure high-quality, maintenance-free visual intelligence.
View Details
LFF-8012C-D50
Fixed lens, 50mm, telephoto, megapixel
Designed for long-distance monitoring in environments like stadiums and perimeters, this 50mm telephoto lens delivers ultra megapixel optical resolution. Its robust construction and high-quality optics ensure the reliable clarity required for accurate video analytics and confident, real-time action.
View Details
LVF-5000C-D2811
Varifocal lens, 2.8-11mm, 960H, 1/3"
The 2.8-11mm 960H varifocal lens provides adaptable, high-quality optics for security monitoring. Featuring a 1/3-inch format and DC-iris control, this lens delivers visibility across changing light conditions.
View Details
LVF-8008C-P0413
Varifocal lens, 4-13mm, 12MP, CS mount
Designed for demanding environments, this 12MP varifocal lens delivers ultra-megapixel optical resolution and precise P-iris control for consistently sharper images.
View Details
Frequently asked questions
What operational benefits does the 2.8-12mm varifocal range provide?
The varifocal design allows installers to easily adjust the focal length from 2.8 to 12 mm directly on-site. This adaptability simplifies deployment by enabling precise field-of-view modifications without requiring multiple lenses, ensuring optimal coverage and reliable situational awareness for changing security needs.
How does the 960H optical resolution enhance image clarity?
Designed to maximize the potential of high-resolution sensors, the 960H optical resolution delivers exceptional contrast and sharpness. Special anti-reflective coatings reduce flare and minimize distortion, providing the dependable, high-quality optics required for accurate real-time understanding.
How does the DC-iris control manage fluctuating lighting environments?
The lens utilizes a standard four-pin EIAJ connector for DC-iris control, which automatically adjusts the iris opening in response to changing light levels. This ensures consistent image clarity throughout the day, providing operators with uninterrupted visibility in dynamic environments.
Is this 1/3-inch format lens suitable for day and night monitoring?
Yes, the lens is fully IR-corrected to accommodate a wide range of lighting conditions. By maintaining a sharp focus when paired with infrared illuminators, it delivers reliable day and night visibility, ensuring critical details are captured clearly regardless of the time of day.
How durable is the construction of this varifocal lens?
Built for long-term reliability, the robust mechanical construction is engineered to withstand the environmental stresses of demanding security installations. It is specifically designed to endure frequent iris control operations, ensuring continuous, dependable performance over the lifespan of the deployment.
Where can I buy genuine Varifocal lens, 2.8-12mm, 960H, 1/3" in Vietnam?
Varifocal lens, 2.8-12mm, 960H, 1/3" is supplied in Vietnam by IQSIGHT Vietnam with data sheets, VMS integration support (BVMS, Genetec, Milestone) and technical support. Send a quotation request for a project-specific configuration.
Is original technical documentation available for Varifocal lens, 2.8-12mm, 960H, 1/3"?
Yes. The original English data sheet of every part number is in the Document Library; final specifications follow the latest IQSIGHT data sheet.
Need advice or a quote for this product?
IQSIGHT Vietnam brings the complete IQSIGHT portfolio (formerly Bosch Video Systems) to Vietnam: IP cameras, IVA Pro AI video analytics, video management software, cloud services, recorders, storage and accessories for critical infrastructure, cities, transportation and enterprises.