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Description
Microscope # 447-TBL-10The 447TBL 10 2x 4x Stereo Microscope from National Optical is a dual magnification stereoscopic microscope fit for laboratories, high school and university students. The stereo (two) eyepiece configuration is preferred by most researchers and students because of the superior depth of field and comfort compared to monocular microscopes. This model of the 447 stereo microscope has a paired 20x eyepiece delivering 40x and 80x magnification. Two
The 447TBL-10 2x/4x Stereo Microscope from National Optical is a dual magnification stereoscopic microscope fit for laboratories, high school and university students. The stereo (two) eyepiece configuration is preferred by most researchers and students because of the superior depth of field and comfort compared to monocular microscopes. This model of the 447 stereo microscope has a paired 20x eyepiece delivering 40x and 80x magnification. Two achromatic paired objectives are parcentered and parfocalled to keep the specimen centered and focused when switching between the two magnification settings. The stage can be illuminated from above and/or below using 10W tungsten lights activated by separate base-mounted On/Off switches. The top (incidental) light source has an adjustable beam to help optimize the brightness and contrast of the specimen.
A user-friendly design complements the range of features that make the 447 stereo microscope a welcome addition to labs as well as classrooms. The heavy-duty post-mounted adjustable viewing head permits use of specimen heights up to 35mm / 1.4", and is also capable of 360° rotation to help share the eyepiece among colleagues and students without moving the microscope. The rack and pinion system has a single focus dial and includes a slip clutch mechanism to prevent mishandling. An adjustable interpupillary distance, left-side diopter correction, and reticle holder/retainer provide the 447 series with the flexibility needed to create a customized viewing experience.
- Paired 20x inclined eyepiece
- 2x and 4x achromatic objectives
- 40x and 80x magnification
- Parfocalled, parcentered, paired objectives
- 75mm / 3" working distance, 35mm / 1.4" maximum specimen height
- Eyepiece with diopter adjustment and reticle holder/retainer
- 55-75mm / 2.2-3" interpupillary distance
- Rack and pinion focus system
- Slip clutch prevents over-turning
- Tension adjustment prevents focus drift
- Incidental (top) 10 watt tungsten illumination with adjustable beam
- Transmitted (bottom) 10 watt tungsten illumination
- Dual base-mounted On/Off switches
- 80mm frosted glass and 80mm reversible black and white stage plates
- Locked on metal stage clips
- 360° rotating viewing head
- Cast metal frame
- Grey enamel finish
- 14.6" (37 cm) maximum height
- 5.5 lb (2.5 kg) weight
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