National Optical 440-series professional stereozoom microscopes feature a large zoom ratio of 6:1 and are ideal for industrial and educational applications. The 0.75-4.5X eyepieces combine with the 10X objective for a magnification range of 7.5-45X. Microscopes feature a heavy-duty post mount with locking support collar to permit up or down adjustment of viewing head to accommodate different sized objects on stage. The overall height is adjustable from 13.4” to 17” to accommodate larger objections.

Both binocular and trinocular models are available with or without LED illumination. Models with LED illumination feature top and bottom LED and base mounted light controls to permit choice of top only, bottom only, or dual illumination.