12X Zoom, 12 mm Fine Focus

The NAVITAR 1-50486 12X Zoom Body tube contains the core zoom mechanism and determines the mechanical nature of your zoom system.  Fine Focus is used for applications without separate moving support systems, the Fine Focus body tubes offer focus over a 3 mm (coaxial models only) or a 12 mm (non-coaxial models) Fine Focus axial distance at the object. Available in manual and motorized versions.