The National Optical DC5-420TH Digital Stereo Zoom Microscope has a pair of 10x widefield eyepieces, a 1x to 4x zoom objective for 10x to 40x continuous magnification, upper and lower halogen illumination, interchangeable stage plates, coaxial focus, and a fixed stage. The 3.0MP digital camera captures and displays images on a computer or projector (sold separately). The binocular head has a pair of eyepieces with interpupillary adjustment, and fixed inclination to reduce eye and neck strain. Dioptric adjustment accommodates individual eye-strength differences. The zoom objective provides low magnification and a longer focal length for inspecting large-scale specimens, or specimens that require hands-on manipulation or repair, including rocks, minerals, watches, or circuit boards. A digital stereo zoom microscope provides zoom magnification that allows the user to zoom in on the specimen within a continuous magnification range. It is used for inspection and dissection when three-dimensional images are desired, and where image capture, detailed records, or documentation is required.
The digital camera has a CMOS color sensor for displaying still microscopy images and streaming live videos to a computer or projector. The camera includes image capture and editing software that provides still image and live video capture and editing capability, including measurement functions. The software is compatible with Windows XP and higher. The camera has a USB 2.0 data port .
The microscope has upper (episcopic) illumination that reflects light off the specimen for enhanced visibility of opaque specimens and lower (diascopic) illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. The halogen light sources provide bright light in a concentrated path, and a rheostat controls the amount of light emanating from the upper lamp. Lighting can be configured for upper, lower, or simultaneous upper and lower illumination. The reversible black and white stage plate is used with top-mounted lighting to provide contrast with light- and dark-colored specimens. The frosted glass stage plate provides evenly diffused illumination. A blue filter helps naturalize the light. The fixed stage has stage clips to secure the slide or specimen in place while viewing. Coaxial focus eases focusing for left- and right-handed viewers. Focus tension control prevents stage drift, and a built-in slip clutch system prevents damage to the focus mechanism. The metal frame provides durability and has a gray enamel finish.
|Microscope Head and Optics Specifications|
|Magnification range||10x to 40x|
|Head inclination||45 degrees|
|Interpupillary adjustment||55 to 75mm|
|Zoom objective||1x to 4x|
|Microscope Illumination and Stage Specifications|
|Light sources||Upper: halogen with rheostat, 12V/15W|
Lower: halogen, 12V/10W
|Stage type||Fixed with stage clips|
|Stage dimensions||165 x 220mm (W x D)|
|Power||100-240V (12VDC power converter)|
W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
|Image type||Still image and video display and capture|
|Computer connection||USB 2.0|
|Software package||Image capture and editing for Windows XP and higher|
Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.
National Optical and Scientific Instruments manufactures microscopes and microscope cameras. The company, founded in 1991, is headquartered in Schertz, TX.
What's in the Box?
- National Optical DC5-420TH Digital Stereo Zoom Microscope
- (2) 10x widefield eyepieces
- Reversible black/white stage plate, 80mm
- Frosted glass stage plate, 80mm
- Blue filter
- (2) rubber eyeshields
- Calibration slide
- Software CD
- USB 2.0 cable
- Power supply
- Dust cover
- Hex wrench