20x/40x cheap binocular stereo microscope

 SpecificationsObjective 1XObjective 2XObjective 3XObjective 4XWorking Distance 100mmMag.FOVMag.FOVMag.FOVMag.FOV10X/20mm10X20.0mm20X10.0mm30X7.5mm40X5.0mm15X/15mm15X15.0mm30X7.5mm45X5.0mm60X3.3mm20X/10mm20X10.0mm40X5.0mm60X3.3mm80X2.5mmMagnificationStandard 20X/40X，can choose different Objective to 10X..80X Eyepiece Standard:10X/20mm，Wild Field, High Eye-pointOptional Eyepiece 10X/20mm，15X/15mm，20X/10mmHeadsInterpupillary: 54-76MM. Inclined 45 °. Rotatable 360°Hinged BinocularObjectiveCombination 2X/4X、1X/2X、1X/3XFocusingA1 Focusing Knob,Range 50mmBaseB1 Small Standard Base, Can Choose Other BaseIlluminationOptional Various Fluorescent and LED Ring Lights…

Optical Lens SC61 High End Stereo Microscope SZ6745 Zoom Stereo Microscope SZM7045 Zoom Stereo Microscope ST30/40 Fixed Stereo Microscope