• China petrographic microscope is the best choice for user to observe mineral crystal figure, color and interference color and also exactly identify the optical performance of mineral and other crystal specimen.

		NP-400	NP-400B
Viewing Head	Compensation Free Binocular Head at 30°,360°Rot table		*
	Monocular Head at 45,360°Rot table	*
Eyepiece	Eyepiece WF10×/18with Scale of Crosshair and 0.1mm	*
	Eyepiece WF10×/18	*	*
Objective	Strain free Achromatic Objective 4×, 10×, 40×, 60×	*	*
Nosepiece	Backward Quadruple Nosepiece	*	*
Analyzer	Rot table Analyzer with Graduation 0 - 90°	*	*
Bertrand Lens	Bertrand Lens , Sliding in/ out of Optical path	*	*
Optical  Compensator	λSlip (first class red), 1/4λSlip, Quartz Wedge	*	*
Revolving Round  Stage	Diameter 145mm,360°Rotable and Graduated in 1°  Increments, Minimum Resolution6′ when Using Venire  Scale, Center Adjustable	*	*
Condenser	N.A.1.25Abbe Condenser with Iris Diaphragm & Filer	*	*
Focusing	Coaxial Coarse and Fine Adjustment, Range 28MM,  Fine Division 0.002	*	*
Polarize	Sliding in/out of Optical Path ,Located on the Top ofCollector	*	*
Illuminations	220V or 110V/6V20W Halogen Lamp , Brightness Adjustable	*	*

"*"standard outfit; "~" options