A 2/3 in. format motorized version of the Model 357 radiation-tolerant zoom lens is designed for use with color 2/3 in. tubes and CMOS cameras in high radiation environments. The Model 357-004 provides true HD images over a 10x (12–120 mm) zoom range. Made with non-browning glass, they withstand an accumulated dose of 100,000,000 RAD and temperatures up to 55°C.