The microscope offers erect, 3-Dimmensional image through sharp & clear optics. The basic stereo head has 1:6 ratio variable Zoom optics body with 10x (paired) Super wide Field eyepieces. Standard magnification covers 1x to 45x which in further expandible with higher powered eyepieces and auxiliary lenses. Objectives : Zoom 0.67 to 4.5x twins with Magnification ratio 1:6 Eye pieces : Super wide Field 10x SWF (paired) Magnification range : 3.3 to 180x depending upon use of OPTIONAL : (EXTRA) 1. Super wide field eye pieces SWF 15x or SW 20x. 2. 2x or 0.5x Auxillary objectives.