Seiler Instrument & Manufacturing Microlux IV Compound Microscope Siedentopf Type Binocular Head Infinite Plan 4X, 10X, 20X, 40X, 100X 110 To 240V Mech
Swift Binocular Compound Microscope SW350B, 40X-2500X Magnification,Siedentopf Head,Research-Grade,Two-Layer Mechanical Stage,1.3Mp Camera And Software Windows And Mac Compatible