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The National Optical & Scientific Instruments 162-PH Binocular Compound Oil Immersion Microscope is a high-end instrument designed for serious research. Featuring plan phase objectives, the 162-PH provides superb optical clarity and accuracy. Numerous other features also enhance the microscope, providing a tool that's not only optically precise, but easy to use.
Further aspects of the optical system include the widefield 10x binocular eyepieces. They sit at a 30° incline and rotate 360° on the viewing head. Dual diopters, interpupillary adjustment, and the option to add the #965-160 eyepiece reticle are among their features.
Illumination is provided by a 12V, 20 watt halogen bulb with a variable rheostat control. Safely grounded, the light has a 0.5A time delay fuse and an illuminated on/off switch. Additionally, focusing is operated with coaxial coarse and fine focusing controls which sit low on the microscope. A tension adjustment and safety rack stop enable many years of use and prevent damage to the system caused by over focusing or stage drift.