A microscope that composes of three eyepieces is a trinocular microscope. This is very useful in laboratory, schools and digital purposes. 10x wide-field eyepieces with 18mm exit pupil distance and a pointer in one eyepiece. Diopters with interpupillary adjustment from 54mm to 76mm are included in binocular eyepieces. Three-position sliding rod directs light 100% to binocular eyepieces, 100% to camera, or 70% to camera and 30% to binocular eyepieces. 4x (0.10 NA), 10x (0.25 NA), 40xR (0.65NA) and 100xR (1.25 NA) deluxe objectives are DIN achromatic, parcentered, parfocaled, and color coded. 40xR objective is retractable, 100xR objective is oil retractable. The reverse position 4-objective turret is ball-bearing mounted for smooth, precise changes in magnification. Digital microscopy is the latest technology advance in the field. Essentially, a digital microscope is a standard light microscope that combined with a digital camera and software, allows microscopic images to be displayed on a computer screen or TV where they can be shared with others, and captured and saved to the computer? hard drive where they can be studied, measured, and manipulated. Digital microscopy adds to the tools of the scientist. One of the greatest advantages of some digital microscopy software is the ability to very accurately measure on the microscopic scale. The system is calibrated by capturing the image a precise object (dot or scale) and entering both the size of the object and the magnification of the objective. The software can then calculate the number of pixels on the screen that represent that object.

Other specimens can then be measured by entering the magnification of the objective in use and then moving the curser across the part of the image to be measured. The measurement can be saved right on the image and exported to a spreadsheet for further analysis. Of course a digital microscope is an excellent way to quickly record results. Images can be used in reports and presentations or shared with others over the internet. In the classroom this allows students to quickly include images in lab reports. It allows teachers to use an image from a laboratory investigation in later assessment; or to have it available for students who missed that lab. One of the most powerful uses for digital microscopy in the schools is for special needs students. Students who have trouble seeing through the eyepiece of a microscope can do their viewing on a computer screen. Coaxial fine and coarse focusing with slip clutch to prevent damage to slides or optics. Coarse focus has tension adjustment to eliminate stage drift, fine focus is graduated. All metal rack-and-pinion focusing. Large 140 x 135mm stage with stage stop and integrated mechanical stage with low-position coaxial x-y controls and 70mm (x) by 50mm (y) movement with graduations of 0.1mm. Adjustable 1.25 NA Abbe condenser with rack-and-pinion focusing and an iris diaphragm for contrast control. Swing-out filter holder with clear blue, green, and yellow contrast filters. 20-watt, 12-volt extra-bright halogen illumination with a variable rheostat for precise lighting control .Special wiring for 220 volt use is available. Field of view is 4.5mm at 40x and 0.18mm at 1000x. Working distance ranges from 18.5mm at 40x to 0.06mm at 1000x . Cast aluminum frame, stands 18″ tall. Trinocular models have two eyepieces for normal viewing, plus a third “phototube” on which you can mount a camera without interfering with the normal operation of the microscope. Nearly all of the Meiji Techno microscopes you will find on this website are available in trinocular models.