LW Scientific Z4 Zoom Binocular 7-45x on Embryo-GLO LED Stand Microscope w/Tilt Mirror. The Z4 Zoom Stereoscope magnifies from 7x-45x for high-resolution 3-D viewing ofembryos and the 10x eyepieces include a reticle for checking embryo size. Magnification can beincreased by upgrading with 15x eyepieces but most embryo transfer doctors find that 45x is theideal magnification. In a traditional stereoscope base the bulb is mounted below the stage plate. Because it shinesdirectly upward into the eyes of the user it obscures the view of the embryos. But the newEmbryo-GLO Base eliminates that problem. Its variable intensity LED bulb is mounted in the rear ofthe base and shines toward a mirror below the stage plate providing a clear view of the embryos.The user-adjustable tilting mirror allows for indirect lighting through embryos at variousangles illuminating the internal structures of the embryos.The double-sided mirror has a clearmirror on one side for bright focused light and a frosted mirror on the other side for diffusedillumination. The improved LED illumination system features variable intensity allowing for brighterlight when needed for higher magnifications. Morphological evaluation of the quality and stage of development of embryos using the Z4 ZoomStereoscope on Embryo-GLO Base will help to increase fertility rates in embryo transfer programs. Specifications for LW Scientific Z4 Zoom 7x-45x on Embryo-GLO Halogen Stand Microscope: Manufacturer: LW Scientific Microscope Type: Zoom Included Accessories: Power cord Dust Cover Magnification: 7 - 45 x Color: White/Black Illumination Type: LED Nosepiece: Built in Condition: New Power: 220 volts 110 volts Weight: 19 lb Height: 15 in Width: 30 in Length: 30 in Features of LW Scientific Z4 Zoom 7x-45x on Embryo-GLO Halogen Stand Microscope: HEAD: Inclined 45 rotates 360 ; 10x/20 high point eyepieces with rubber eye guards; Reticle installed for sizing embryosInterpupillary distance 50mm-75mm; OBJECTIVES: 0.7x to 4.5x hard-coated zoom objectives; Standard magnification range is 7x to 45x; Maximum magnification 135x with optional lenses; FOCUS: Large dual focusing knobs with metalrack & pinion; Metal pinion gear zoom mechanism; Maximum height 7.5 (190.5mm) from stage to scope; ILLUMINATION: High-Intensity LED Reflector bulb; Tilting double-sided mirror (clear and diffused); Light control unit with variable intensity brightness control; CONSTRUCTION: Aluminum alloy construction; Acid and reagent resistant finish; STAGE: Mirror angle adjustment knob; Clear glass stage plate; Plastic hand rest; Package Contents: LW Scientific Z4 Zoom 7x-45x on Embryo-GLO Halogen Stand Microscope LW Scientific Z4M-BZM7-EML3: Z4 Zoom Binocular 7-45x on Embryo-GLO LED Stand Microscope w/Tilt Mirror