National Optical 167 Laboratory Monocular Microscope

The National Optical model 167 monocular compound microscope with semi-plan optics is superior in design and performance to most other microscopes. The quality construction and engineering make it ideal for university, laboratory, and professional use, or for families who enjoy microbiology and want the highest quality for viewing cells.

The higher-quality semi-plan DIN optics provide superb optical clarity at 40, 100, 400, and 1000x magnification with 80-85% flatness of field. The precision coaxial focusing and low-position coaxial stage controls are a pleasure to use and deliver smooth, reliable performance. Other features like the reverse position objective turret facilitate slide changing and ease of operation. The bright 3-watt LED lighting with variable intensity control, 1.25 N.A. Abbe condenser, and iris diaphragm with swing-out filter holder provide great contrast control. Order immersion oil for 1000x objective. National Optical model 167-SP, lifetime warranty.

• 10x wide-field 45° inclined eyepiece with pointer and 18mm exit pupil distance
• 360° rotating head for sharing and viewing comfort
• 4x (0.10 NA), 10x (0.25 NA), 40xR (0.65NA) and 100xR (1.25 NA) deluxe semi-plan objectives are DIN standard, parcentered, parfocaled, and color coded
• 40xR objective is retractable, 100xR objective is oil retractable
• The reverse position 4-objective turret is ball-bearing mounted for smooth, precise changes in magnification
• Coaxial fine and coarse focusing with slip clutch to prevent damage to slides or optics
• Coarse focus has tension adjustment to eliminate stage drift, fine focus is graduated
• All metal rack-and-pinion focusing
• Large 140 x 135mm stage with stage stop and integrated mechanical stage with low-position coaxial x-y controls and 70mm (x) by 50mm (y) movement with graduations of 0.1mm
• Adjustable 1.25 NA Abbe condenser with rack-and-pinion focusing and an iris diaphragm for contrast control
• Swing-out filter holder with frosted filter
• 3-watt long-life LED illumination with a variable intensity knob for precise lighting control
• 110V-220V external auto-switching power supply
• Field of view is 4.5mm at 40x and 0.18mm at 1000x
• Cast aluminum frame, stands 17" tall
• Includes operating instructions and a dust cover
• Replacement light bulb is available
• Lifetime warranty
• National Optical Model 167-SP