Hecate 136 Professional Lab Binocular Biological Compound Microscope, 40X-2500X Magnification Achromatic objectives:4x, 10x, 40x , and 100x .magnification:40X-2500X N.A=1.25 abbe condenser with iris diaphragm for clear examination and light control Dual observation head,one tube 45 degree inclined and another tube vertical Double-Layer Mechanical Stage, LED Illumination, Coaxial coarse and fine adjustment Package:a microscope,manual, a warranty card,;WF10X(2),WF16X(2),WF25X(2)