NA440440P

440-440P

National Optical

The 440-440P Zoom Binocular Stereo Microscope with plain base from National Optical is a professional-quality stereo microscope for industrial and educational settings. The 0.75-4.5x eyepieces combine with the 10x objective for a magnification range of 7.5-45x, and the overall height adjusts 13.4-17" to accommodate larger objects. The large zoom ratio of 6:1 and a standard working distance of 110mm provide the flexibility to support a large number of potential applications while the addition of an auxiliary lens or substitute eyepieces extend the magnification up to a maximum of 180x.Optical System and Focusing Paired widefield 10x eyepieces are 45 inclined, with dual diopter adjustments, interpupillary adjustment from 55-75mmAccepts 23mm eyepiece reticleViewing head rotates 360 Continuous magnification 7.5-45xLarge dual focusing knobs with slip clutch to prevent damage to mechanismTension adjustment eliminates focus 'drift'Frame and Stage Professional all-metal frame, gray enamel finishHeavy-duty post mount with locking support collar permits up or down adjustment of viewing head to accommodate different sized objects on stageHeight adjusts 13.4-17" for larger objects