

In an era where surveillance demands uncompromising clarity, Towin’s apochromatic CCTV lens emerges as a game-changer, combining cutting-edge optics with robust engineering. Designed to eliminate color fringing and deliver razor-sharp images across all wavelengths, this lens redefines precision in security applications. Whether monitoring high-traffic areas or sensitive installations, Towin’s apochromatic CCTV lens ensures every detail is captured with unparalleled accuracy.
Towin’s apochromatic CCTV lens is engineered to correct chromatic aberration—a common issue in standard lenses where different light wavelengths focus at varying points, causing color fringing. By utilizing advanced apochromatic design, this lens aligns red, green, and blue wavelengths at a single focal plane, achieving 99% chromatic aberration correction. This ensures vivid, true-to-life colors even in challenging lighting conditions, a critical feature for facial recognition or license plate identification.
1. Focal Length Range:
Towin offers versatile focal lengths from 8mm to 50mm, catering to diverse surveillance needs. Short focal lengths (8–12mm) suit wide-angle monitoring of large areas like parking lots, while longer focal lengths (35–50mm) excel in zoomed-in scenarios, such as entry points or cash registers.

12-50mm-P-Iris-Telephoto CCTV-lens
2. Aperture (F-Stop):
With an adjustable aperture of f/1.4 to f/16, this lens adapts seamlessly to varying light levels. The wide f/1.4 aperture captures bright images in low-light environments, reducing reliance on artificial illumination and enhancing energy efficiency.
3. Resolution & Image Quality:
Supporting 4K UHD resolution (8MP), Towin’s lens delivers crystal-clear footage, enabling analysts to discern minute details. Its MTF (Modulation Transfer Function) rating of 0.7 at 50 lp/mm guarantees high contrast and sharpness across the frame.
4. Mount Compatibility:
The lens features a CS-mount interface, ensuring compatibility with most CCTV cameras. For added flexibility, Towin provides optional adapters for C-mount systems, making it a versatile choice for retrofitting existing setups.
5. IR Correction:
Built-in infrared (IR) correction ensures consistent focus in both visible and near-infrared spectrums (700–950nm). This dual-band functionality is indispensable for 24/7 surveillance, eliminating the need for separate day/night lenses.
6. Durability & Environment Resistance:
Rated IP67 for dust and water resistance, the lens withstands harsh outdoor conditions. Its metal housing and anti-reflective coatings protect against corrosion and glare, extending operational lifespan to 50,000+ hours.
1. Superior Color Accuracy:
Unlike standard achromatic lenses, Towin’s apochromatic design minimizes secondary spectrum errors, ensuring colors remain consistent from edge to edge. This is vital for applications requiring forensic-level detail, such as law enforcement or retail analytics.

2.8-12mm DC Auto iris CS mount lens, Day/Night CCTV Lens
2. Low-Light Mastery:
The f/1.4 aperture captures 3x more light than f/2.0 lenses, reducing noise in dimly lit scenes. Paired with Towin’s low-dispersion glass, it achieves a signal-to-noise ratio (SNR) of >50dB, even at maximum zoom.
3. Compact & Lightweight:
Weighing just 120g, the lens balances portability with performance. Its compact design simplifies installation in tight spaces, such as ATMs or elevator interiors, without compromising image quality.
4. 12-Month Warranty:
Towin backs its product with a comprehensive 12-month warranty, covering defects in materials and workmanship. Customers also gain access to 24/7 technical support via Towin’s official website , ensuring hassle-free maintenance.

3.6mm-HD-Wide-Angle CCTV Lens
Towin’s apochromatic CCTV lens is not just a product—it’s a commitment to precision. With its 99% chromatic aberration correction, 4K resolution, and rugged build, it outperforms competitors like Fujinon and Computar in both value and performance. For businesses seeking to future-proof their surveillance systems, this lens offers a compelling blend of innovation and reliability.