Optics & Allied Engg. Pvt. Ltd. Manufactures 130mm Precision Lens with 360 rotatable head. Optics & Allied Engg. Pvt. Ltd. Is an ISO 9001-2000 certified company. The magnification of these lenses is 4 x area magnification and 2 x liner magnification. The 22 Watts [230V] Circular fluorescent tube avoids shadows and the lenses feature 360 degree rotatable head with height adjustment. Focusing is done by bush and pillar systems and the machine has 500 lumens [5,400 lux] of day light and square feet. 130mm Precision Lens with 360 Degree rotatable head has a dimension of 425 mm Length x 400 mm Width x 390 mm Height and it weighs approximately 9 kg after packing.