... a better choice for the lens applications in these areas. • Compact design, so that all functions are concentrated in a tube ... occasions• Various additional functions for option. Specifications Zoom lensSZ6D zoom objective:0.7-4.5XSZ6DF3 zoom objective:0.7-4.5X,with 3mm ... positioning mechanism, coaxial light interface and 3mm fine adjustment.SZ6DF12P zoom objective:0.7-4.5X, with main ratio positioning ...