ACM-22303-J Models: TECHNOCRACY PVT. LTD. ® The precise focusing mechanism allows both coarse and fine focus adjustments, to yield crisp, clear images. Imaging is also aided by a fiberoptic light guide that provides bright field illumination. The 50/50 trinocular microscope head allows for simultaneous video and binocular viewing. The focusing 10X or 20X wide field eyepieces can accept 25-mm diameter reticules for measurement applications. TECHNOCRACY PVT. LTD.