The Edmund Optics TECHSPEC® 23-217 is a 4.5mm fixed focal length SWIR lens optimized for imaging in the 900–1700nm wavelength range. Designed for 1/1.8" sensors, this compact C-mount lens provides an 84.7° horizontal field of view, an adjustable f/2–f/11 aperture, and a minimum working distance of 25mm. Broadband anti-reflection coatings enhance SWIR transmission, making the lens suitable for close-range inspection, factory automation, and wide-field machine vision applications.

The Edmund Optics C Series Fixed Focal Length SWIR lenses offer compact, cost-effective solutions for industrial inspection, factory automation, and machine vision applications. Available in focal lengths from 3.5mm to 100mm, the series provides flexible imaging options for a variety of field-of-view and working-distance requirements.