gem testing microscope 6.5-45X(90X)

 Specification :

  Stereo zoom 6.5-45X(90X),Zoom ratio 1:7

* Working distance:99mm

* The range for adjusting the diopter:+/-5

* The range for adjusting the focus:135mm

* Wide-angle eyepieces with high point

* Optic head and stand tilt to a more natural 40°viewing angle

* Three kinds of illumination fields

* Tungsten-halogen darkfield/brightfield intensity

* Adjustable iris diaphragm to control width of light beam

* Fluorescent illumination simulates north daylight,ideal for diamond color grading

* Work normally in 90-230V voltage range and the luminance is steady

* Built-in optical-fiber illumination

gem testing microscope 6.5-45X(90X)