AmScope 40X-1600X Lab Clinic Vet Trinocular Darkfield Microscope Simul-focal optical system boasting three unique features Offering eight magnification settings: 40X-64X-100X-160X-400X-640X-1000X-1600X Two condensers, dark field and bright field, included 3D double-layer mechanical stage with Abbe condenser and iris diaphragm Sturdy metal framework and coaxial coarse & fine focusing