About this item: 
Magnifications: 40x, 64x, 100x, 160x, 250x, 400x, 640x, 1000x, 1600x, 2500x; Microscope Head: - Trinocular viewing head: anti-mould, 45 degrees inclined 360 degrees swiveling, compensation free - Sliding interpupillary adjustment, range 2-3/16inch - 3.0inch (55 mm-75 mm) - Nosepiece: revolving, quadruple - Adjustable diopter ring on both ocular tubes - Photo tube: Inner diameter 23.2mm, height adjustment range: 3/4inch (18 mm); Eyepieces - 3 pairs of eyepieces: WF10X, P16X, WF25X 
Magnifications: 40x, 64x, 100x, 160x, 250x, 400x, 640x, 1000x, 1600x, 2500x; Microscope Head: - Trinocular viewing head: anti-mould, 45 degrees inclined 360 degrees swiveling, compensation free - Sliding interpupillary adjustment, range 2-3/16inch - 3.0inch (55 mm-75 mm) - Nosepiece: revolving, quadruple - Adjustable diopter ring on both ocular tubes - Photo tube: Inner diameter 23.2mm, height adjustment range: 3/4inch (18 mm); Eyepieces - 3 pairs of eyepieces: WF10X, P16X, WF25X