Unitron Z645 Microscope Front Auxiliary Lenses

Unitron Z645 Front Auxiliary Lenses are used to increase or decrease magnification and zoom range 0.3x auxiliary objective, 287mm working distance (LED and Plain Focusing stand configurations require riser adapter) 0.4x auxiliary objective, 217mm working distance (LED and Plain Focusing stand configurations require riser adapter) 0.5x auxiliary objective, 177mm working distance Riser adapter, required for 0.3x, 0.4x, 0.5x auxiliary objectives 0.75x auxiliary objective, 120mm working distance 1.5x auxiliary objective, 47mm working distance 2.0x auxiliary objective, 26mm working distance 1x glass lens shield (removable), 110mm working distance   Objective Lens Working Distance (mm) Eyepieces WF10x/22mm WF15x/16mm WF20x/12.5mm Mag. F.O.V. (mm) Mag. F.O.V. (mm) Mag. F.O.V. (mm) 1x 110 6.7x - 45x 32.8 - 4.8 10.1x - 67.5x 23.8 - 3.5 13.4x - 90x 18.6 - 2.7 0.3x 287 2x - 13.5x 109.3 - 16 3x - 20.3x 79.3 - 11.6 4x - 27x 62 - 9 0.5x 177 3.4x - 22.5x 65.6 - 9.7 5.1x - 33.8x 47.7 - 7.1 6.8x - 45x 37.3 - 5.5 0.75x 120 5x - 33.8x 43.7 - 6.5 7.5x - 50.7x 31.8 - 4.7 10x - 67.6x 24.8 - 3.7 1.5x 47 10.1x - 67.5x 21.8 - 3.2 15.2x - 101.3x 15.9 - 2.3 202.2x - 135x 12.4 - 1.8 2.0x 26 13.4x - 90x 16.4 - 2.4 20.1x - 135x 11.9 - 1.7 26.8x - 180x 9.3 - 1.3