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The National Optical & Scientific Instruments DC3-420TH Stereo Zoom Microscope with Built-In Camera provides a live view of specimens with the built-in analog/digital CCD camera. The included Motic Images 2.0ML software also allows the user to capture, label, manipulate, and measure images. In addition, the DC3-420TH can also be used independently of the camera.
The optical system of the microscope centers around 1-4x objectives, which allow for continuous 10-40x magnification. The paired widefield 10x eyepieces provide an upright, unreversed three dimensional image as well. Illumination for the 420TH is provided by top and bottom halogen lights. A blue filter is built-in for transmitted light.
The base of the microscope includes a sturdy stage that accepts the two included 80mm stage plates: one in frosted glass and a reversible black/white plastic contrast plate. Two locked-on stage clips work to prevent slides from moving, while the post mount with locking collar permits up or down adjustment for objects of varying size on the stage.
Paired widefield 10x eyepieces inclined at 45° with diopter adjustment, and interpupillary adjustment from 55mm to 75mm
Achromatic, color corrected lenses
Continuous magnification from 10x through 40x (optional auxiliary lenses available)
Top light (incidental is 12V, 15W halogen, bi-pin with directional beam and rheostat control
Blue filter for transmitted light
Bottom light (transmitted) is 12V, 10 watt halogen, bi-pin
4-position light control: top only / bottom only / top and bottom / off
12V DC power converter operates on 100-240V, 50/60Hz current, without need of additional transformer
Tension adjustment eliminates focus "drift"
Rack and pinion focusing with slip clutch and tension adjustment
Heavy-duty post mount with locking collar, permits up or down adjustment of viewing head to accommodate different sized objects on stage
Includes two 80mm stage plates: frosted glass and reversible black/white plastic contrast plate
Two locked-on stage clips
In the Box
National DC3-420TH Stereo Zoom Microscope with Built-In Camera
Motic Images 2.0ML Software
Limited Lifetime Warranty on Microscope
1-Year Limited Warranty on Camera
Table of Contents
Stereo with built-in 1.3Mp digital camera
Height: 13" / 330mm
11.2 lb / 5.1kg
Imaging Device: CCD (analog); CCD (digital)
Live imaging: analog: 550 TV lines; digital: 720 x 480
Framed resolution: 720 x 480 pixels
White balance: Push button
Power supply: External power supply
Requires Windows XP PC or OS X (or above)
National DC3-420TH Stereo Zoom Microscope with Built-In Camera Review