03/17/2026
Fixed Focal Length and Varifocal Lenses

Choosing Between Fixed Focal and Varifocal Lenses

For CCTV, IP camera, and machine vision, choosing between fixed focal and varifocal lenses impacts quality, view, flexibility, and cost.
03/16/2026
FOV Calculation

How to Calculate FOV for Machine Vision: FOV Calculation

FOV calculation has two core derivation forms, which are applicable to direct manual calculation and system parameter matching respectively.
03/15/2026
ADAS Camera Lens

ADAS Camera Lens Specifications: A Comprehensive Guide for Automotive Vision

Learn key specs of ADAS camera lenses—FOV, resolution, low-light performance, certifications for Tier 1 suppliers and vision integrators.
03/14/2026

Professional Optical Lens Selector Tool Online

Free online optical lens selector. Filter by focal length, resolution, mount & sensor size for machine vision, CCTV & automotive applications.
03/13/2026
Vari-focal CS Mount Lenses

The Impact of IR-Corrected Lenses on 24/7 Day/Night Surveillance

Discover how TOWIN IR-corrected lenses eliminate focus shift, enhance 24/7 surveillance imaging, and explore our full CS-mount lens series.
03/12/2026
F1.2 ITS Lens

Optimizing LPR/ANPR Systems with High-Resolution ITS Lenses

High-resolution ITS lenses deliver sharp imagery across lighting and distances, improving OCR accuracy and reducing false reads.
03/11/2026
Pinhole lens

Hidden pinhole camera lens

Discover TOWIN hidden pinhole camera lens with IR correction, M12 mount, and full focal lengths for covert surveillance.
03/10/2026
normal lens vs

Why <0.1% Distortion lens for Machine Vision

Why <0.1% distortion lens is critical for measurement. Learn how to choose low-distortion lenses for your machine vision system at Towin.
03/10/2026
M12 Pinhole CCTV lens

1/3″ 3.7mm M12 Pinhole CCTV lens

The 1/3″ 3.7mm M12 Pinhole CCTV Lens (Model: CCL13037PMPR2) is a high-definition (HD) lens designed specifically for CCTV cameras.
03/09/2026
Non-distortion Lens

Low Distortion vs. Zero Distortion: What Does Your Vision System Need?

Choosing between Low Distortion vs. Zero Distortion lenses is a key decision when sourcing for your vision system.
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