AW 40X-2500X LED Lab Binocular Compound Science Microscope with Double Layer Mechanical Stage Six widefield magnification settings: 40X, 100X, 250X, 400X, 1000X, 2500X Four achromatic objectives: DIN 4X, 10X, 40X(S), 100X(S,Oil) Two pairs of widefield eyepieces: WF10X and WF25X Professional 30 degree inclined & 360 degree swiveling binocular head Adjustable interpupillary distance