Our range of stereo zoom microscopes uses different focal points to grow the picture of an example. Normally, a compound magnifying instrument is utilized for survey tests at high amplification , which is accomplished by the consolidated impact of two arrangements of focal points: the visual focal lens (in the eyepiece) and the main focal lenses(near the example). Light is gone through the sample (called transmitted light brightening). Bigger articles should be cut to enable this to happen effectively. In addition, our stereo zoom microscopes more often exclude replaceable target focal lenses with various amplifications, mounted on a turret, to modify the amplification.