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The 161-PH Dual Head Compound Microscope from National Optical is a four-objective dual viewing head microscope designed for university students and laboratory use. Phase contrast DIN objectives minimize image distortions and provide enhanced contrast for viewing unstained specimens. The 100xR magnification objective can be oil-immersed for improved light transmission. The objectives are also parfocalled and parcentered, keeping the specimen in focus and centered in the field of view when the magnification is changed.
A user-friendly design complements the range of features that make the 161 series microscope a welcome addition to labs as well as classrooms. A 360° rotating monocular viewing head enables the inclined eyepiece to be shared with multiple viewers without having to move the microscope. A dual viewing head enables simultaneous use by two users, or the attachment of a camera using the optional c-mount adapter.
This configuration of the 161 has an individual focus dial for fine and coarse adjustments. The focus system also includes a slip clutch and rack stop that prevents mishandling. The 161-PH also features a rheostat-controlled 20W halogen light source and a mechanical stage with low-position x-y specimen adjustment controls. National Optical engineered this compound microscope to be easy to use yet feature-rich enough to employ advanced microscopy techniques. The 161 series microscope was built for reliable performance and is backed by the manufacturer's lifetime warranty.
10x, 18mm eyepiece with revolving pointer
Phase contrast objective lenses
4x,10x,40xR, 100xR DIN objectives
40x,100x, 400x, 1000x magnification
100xR enables oil immersion techniques
Parfocalled, parcentered, color-coded objectives
360° rotating dual viewing head for easier eyepiece sharing
Coaxial low-position fine and coarse focusing controls
Elevating stage focus system
Slip clutch prevents over-turning
Tension adjustment prevents focus drift
Rack stop prevents damage to slides and protects lenses
20 Watt halogen illuminator
1.25 NA Abbe condenser lens with rack-pinion focusing
Swing-out filter with blue, green, and yellow filters