Computer Optics Inc. is offering a line of precision zoom lenses for focusing from 90 to 200 mm. The COI MVZ 101 produces crisp images for 1/2- and 2/3-in.-format CCD cameras with up to 500k-pixel resolution. Magnification can be adjusted over a 2.5:1 range to maximize image size. The COI MVZ 401 provides a basic working distance of 3 ft to infinity with close-up adapters that provide a minimum operating distance of 16 in. This lens was designed specifically for use with 1024 3 1024-pixel CCDs.