National 161 Dual-Viewing Teaching Microscope Series

Superior in design and in performance, the 160 series incorporates a wide range of features designed for university and laboratory use. Superb optical clarity and reliable mechanical engineering assure years of top performance. This unit is supplied with standard achromatic lenses which deliver excellent clarity and normal flatness of field.

OPTICAL SYSTEM

• Widefield 10x /18mm eyepiece, pointer standard in one eyepiece. Accepts optional #965-160 eyepiece reticle.
• Dual viewing head with 30° inclined eyepiece, and vertical eyepiece with diopter, rotates 360° for easy sharing by more than one student. Permits dual viewing, or mounting of optional video adaptor on vertical tube.
• DIN standard 4x (0.10 N.A.), 10x (0.25 N.A.), 40xR (0.65 N.A.) and 100xR oil immersion (1.25 N.A.) achromatic objectives. All are parfocalled, parcentered and color-coded.
• Optional Super High Contrast Objectives - 4x (0.10 N.A.), 10x (0.25 N.A.), 40xR (0.65 N.A.) and 100xR oil immersion (1.25 N.A.)
• Optional Plan Achromatic Objectives - 4x (0.10 N.A.), 10x (0.25 N.A.), 40xR (0.65 N.A.) and 100xR oil immersion (1.25 N.A.)
• Quad objective turret is ball-bearing mounted for smooth, precise positioning of objectives, features textured rubber knurling for easy grip. Mounted in reverse position to facilitate ease in changing slides.

ILLUMINATION

• 12v 20 watt halogen with variable rheostat control.
• Illuminated on/off switch, 3-wire grounded cord and plug.
• 0.5A time delay fuse.

FOCUSING

• Coaxial coarse and fine focusing controls, coarse has tension adjustment, fine is graduated.

STAGE

• Large 140mm x 135mm (5-1.2 in. x 5-1/4 in.) stage; built-in, low profile, ball-bearing mounted mechanical specimen holder with low-position coaxial controls, 70mm (x) by 50mm (y) movement with graduations of 0.1mm.
• 1.25 N.A. Abbe condenser has rack & pinion focusing, iris diaphragm, swing-out filter holder with clear blue, green and yellow filters supplied.

FRAME

• Rugged cast aluminum, gray enamel finish.
• Base dimensions: 185mm x 235mm (7-1/4 in. x 9-1/4 in.)
• Height : Inclined eyepiece, 380mm (15 in.). Net wt. 6.5 kgs (14.2 lbs)
• Vertical eyepiece, 455mm (18 in.)

WARRANTY