Buying a stereo camera requires choosing between three distinct paths: modern sensors for robotics, digital consumer 3D cameras, or vintage analog film units. Unlike standard cameras, the "stereo" effect is created by two lenses capturing a scene from slightly different angles, mimicking human binocular vision to provide depth perception. 1. Computer Vision & Robotics (Industry Standard)

: These use a geometric approach called triangulation to perceive depth, performing well in large outdoor fields of view. 2. Consumer Digital & Specialized 3D RealSense - Stereo Depth Cameras

: Offers a longer six-meter range and better outdoor performance.