一定牛彩票网官网

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      1. Gem Testing

        Some stereo microscope with special accessories can be used for professional jewelers and gemologists, as stereo microscope can supply?a wide field?of?view. The?dual halogen illuminator?can?provide?a?switchable brightfield and darkfield with an iris aperture for transmitted lighting. A front incandescent lamp can provide a reflected illumination for surface inspection. The gem-tweezer?can be swiveled and twisted for precise positioning.?If you need mount a camera, trinocular head?microscope is a good choice.

        Check more details about Qualitek microscope which can be used in this field.

        一定牛彩票网