Warranty: 1 year Features: Eye piece: 10x, 15x Objective: 1x, 1.6x Total magnification: 10x, 16x and 24x Slit image rotation: 0 to 180 degree rotation Tilting illumination: Up to 20 degree Filter disc: Cobalt filter, green filter, yellow filter, natural density and open aperture Slit disphragm disc: 6 apertures of 12, 9, 7, 3 and 0.2mm and a veg shaped diaphragm of infinitely variable slit lens Halogen lamp: 6 volt 20 watts Weight: 12 kg