Description:
National Optical 440-440PLL Zoom Stereo Microscope, 0.75X-4.5X. The 440-440PLL is a professional-quality stereo microscope for industrial and educational settings. 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. Top light is LED with directional beam and rheostat control. Bottom light is LED for cool operation, greater light efficiency. Base mounted light controls permit choice of top only, bottom only, or dual illumination. 110V. Shipping Weight: 17 Lbs
OPTICAL SYSTEM:
Paired widefield 10x eyepieces are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm. Accepts 23mm eyepiece reticle.
Viewing head rotates 360°.
Continuous magnification from 7.5x thru 45x.
