Electronic Image Stabilization (EIS) and Optical Image Stabilization (OIS) are the two primary stabilization technologies for CCTV cameras. EIS is a software-driven, cost-effective method that crops and shifts pixels after capture, well suited to dynamic, well-lit scenes. OIS is a hardware-based method that physically shifts the lens or sensor before light hits the sensor, delivering superior image quality in low-light and long-range scenarios, at higher cost and complexity. The right choice depends on lighting conditions, budget, and how critical image clarity is to the application.

A Short-Wave Infrared (SWIR) camera images in the 0.9–1.7 μm band (extending to 0.85–2.5 μm in some advanced systems), using reflected light rather than self-emitted thermal radiation — similar in principle to a visible-light camera. Built around an Indium Gallium Arsenide (InGaAs) sensor, SWIR cameras deliver high-resolution, high-contrast imaging with strong penetration through fog, haze, smoke, and certain solid materials, making them valuable for industrial inspection, security surveillance, and material composition analysis.

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