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Description
National 453TBL-15-LED 2x/4x Stereo MicroscopeTop Bottom Cordless LED Lighting 45 Inclined Viewing Head 15x Stereo Eyepiece 2x 4x Objectives, 30x 60x Magnification Parfocalled Parcentered Paired Objective 80mm Frosted Glass Stage Rack and Pinion Focusing The 453TBL 15 LED 2x 4x Stereo Microscope from National Optical is adual magnification stereoscopic microscope designed for laboratories, high school and university students. The stereo (two) eyepiece configuration is preferred by most
- Top/Bottom Cordless LED Lighting
- 45� Inclined Viewing Head
- 15x Stereo Eyepiece
- 2x/4x Objectives, 30x/60x Magnification
- Parfocalled/Parcentered Paired Objective
- 80mm Frosted Glass Stage
- Rack and Pinion Focusing
The 453TBL-15-LED 2x/4x Stereo Microscope from National Optical is a�dual magnification stereoscopic microscope designed 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�453 stereo microscope has a paired 15x eyepiece delivering 30x and 60x magnification. Two achromatic paired objectives are parcentered and parfocalled to keep the specimen centered and focused when switching between the two magnification settings.
The 453TBL-15-LED�microscope can�illuminate specimens�from above�and/or below using�cordless LED�lights�activated by separate base-mounted On/Off switches.�LED lighting�is suitable for microscopy�because of�its cool operating temperature, relatively white color temperature, and energy efficiency. The cordless LED lights will provide up to 50 hours of illumination after a full eight-hour charge. 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 make the 453 stereo microscope a welcome addition to classrooms�as well as labs.
- Optical System
-
- Paired 15x�(20mm) inclined eyepiece
- 2x and 4x achromatic objectives
- 30x�and 60x 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
- Focusing
-
- Rack and pinion�focus system
- Slip clutch prevents over-turning
- Tension adjustment prevents focus drift
- Lighting
-
- Incidental (top)�cordless LED�illumination
- Transmitted�(bottom)�cordless LED�illumination
- Up to 50 hours of continuous operation on a full charge
- Dual base-mounted On/Off switches
- Construction Details
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- 80mm frosted glass�and 80mm�reversible black and white stage�plates
- Locked on metal stage clips
- Cast metal frame
- Grey enamel finish
- 12.2" (31 cm) height
- 5.5�lb (2.5 kg) weight
- Eyeshields
- Dustcover
- Five Year Limited Warranty (Excluding Bulb and Batteries)
| Microscope Type | Stereo |
| Eyepiece | 15.0x (20 mm) |
| Objective(s) | 2.0x / 4.0x |
| Head | Inclined |
| Light Source | LED (incidental/transmitted) |
| Light Control | 4-position On/Off |
| Stage | 80 mm frosted glass and reversible black/white contrast plate |
| Power Supply | (3) rechargeable AA batteries |
| Runtime | Up to 50 hours |
| Interpupillary Adjustment | 2.2 - 3" (55 - 75 mm) |
| Maximum Specimen Height | 1.4" (35 mm) |
| Maximum Height | 12.2" (31 cm) |
| Weight | 5.5 lb (2.5 kg) |
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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