Product Information OEM Products Optical Devices & Components CCTV Lenses Vari-Focal Lenses Mega-Pixel Vari-Focal Lenses IR(Infrared) Vari-Focal Lenses IR(Infrared) Fixed-Focal Lenses Motorized Zoom Lenses Mega-Pixel Machine Vision / FA Lenses High Resolution Machine Vision / FA Lenses Panorama Camera with fish-eye lens Accessories SLR Lenses BRONICA Medium Format Cameras

English Top > Product Information > CCTV Lenses Top > Fixed Focal Length Lenses for Surveillance > Features of Fixed Focal Length Lenses for Surveillance Tamron offers a series of 1/3" format IR-compatible fixed focal length lenses covering a complete range from 2.2mm for an ultra wide-angle view of 118.6 degrees to 8mm for an angle of view of 34.5 degrees. Pursuit of Reliability Reliability is ensured by the employment of highly reliable iris meters and diaphragm mechanisms. Day-to-night Surveillance Each lens is IR-compatible to allow surveillance not only in daytime but also at night. Click here for more details on day-to-night surveillance lenses Differences between visible light lenses and infrared lenses Since light dispersion is large due to differences in wavelengths, the positions of focal planes for light in infrared and visible light ranges differ. This difference in focal planes causes image blur. With Tamron IR lenses, focal planes for the visible and infrared light ranges are almost the same, which means that the surveillance camera can deliver sharp images in both day and night applications.