Laboratory microscope / optical / monocular M2251B Swift Optical Instruments

Laboratory microscope / optical / monocular M2251B Swift Optical Instruments
M2251B

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The M2250 Series is ideal for a wide variety of educational applications and built to withstand student use. This series has locked-on stage clips, eyepiece, objectives (sealed 40x) and a "slip-clutch" focusing system to protect gears from over-focusing. M2251B is supplied with standard tungsten illumination and American plug. OPTICAL SYSTEM Widefield 10x /18mm eyepiece. Monocular viewing head with 45° inclined eyepiece. DIN standard 4x (0.10 N.A.), 10x (0.25 N.A.) and 40xR (0.65 N.A.) achromat objectives. All are parfocalled, parcentered and color-coded. Three-hole nose piece is ball-bearing mounted for smooth, precise positioning of objectives. ILLUMINATION 120V, 20 watt tungsten bulb. ELECTRICAL 110V power supply, unit shipped with American plug. FOCUSING Low position coarse and fine focusing controls. Stage moves up or down, eyepiece and body remain fixed. Slip clutch prevents damage to focusing system. Tension adjustment eliminates stage drift. Safety rack stop prevents damage to slides and objective lenses. STAGE Large 4-3/4 in. x 4-1/2 in. (120mm x 115mm) stage, with locked-on, spring mounted stage clips, drilled and tapped to accept optional mechanical stage. Built-in 0.65 N.A. condenser lens. Calibrated 5-hole disc diaphragm.
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