CUS-BXFM-F-M MOT.FOCUS UNIT Motorized focussing unit with coaxial coarse and fine focus for BXFM microscope system, compatible with BX3M-ILH and BXFM-ILHS illuminator holder. Mount for 32 mm Ø pillars. Focus stroke 30 mm, maximum focus speed 12 mm/s. Requires Märzhäuser Tango controller (M-CU#).