Close- focusing macro video lens, 6:1 zoom ratio or a 6X magnification power over a focal range of 18 mm to 108 mm. It comes with a close-up lens for imaging at distances from 5" to 12". When the close-up lens is removed, the working distance extends from 24" to infinity. Objective size = 100 mm x 50 mm, Camera format = 2/3"