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WD65mm mono fixed zoom microscope

Fixed zoom: 0.3X,0.5X,0.8X,1X,1.5X,2X,4X,6X, The depth of field is the value of parsing images if you user 1/2" CCD camera and monitor for level 320 line (imaging surface concessional confusion circumference:40) Resolution is the theory resolute on of wavelength in 550nm