The National Optical & Scientific Instruments Model 160 Compound Microscope is designed for university and laboratory use, as evidenced by its numerous features, including a lifetime warranty. The 160 has a 45° monocular viewing head which rotates 360° and features a widefield 10x eyepiece.
The microscope includes the following DIN standard oil immersion objectives: 4x, 10x, 40xR, and a 100xR. These objectives provide 40x, 100x, 400x, and 1000x magnification. A ball-bearing mounted quad objective turret provides smooth, precise positioning of objectives as well.
When it comes to illumination, the 160 features a 12V, 20 watt halogen light source with a variable rheostat control. Focusing includes coaxial course and fine focusing controls. The coarse control has a tension adjustment while the fine is graduated.
The built-in, low-profile stage is 5.5 x 5.25" inches in size. It features low-position coaxial controls and fine gradation movements for precise viewing. The 1.25 N.A. Abbe condenser has rack and pinion focusing, an iris diaphragm, and a swing-out filter holder with clear, blue, green, and yellow filters.