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Specification		XP-400B	XP-400T
Optical System	Infinity optical system F=180mm	●	●
Viewing Head	Siedentopf binocular, 30° inclined, 360° rotatable (50~75mm)	●
Viewing Head	Siedentopf trinocular, 30° inclined, 360° rotatable (50~75mm), Light Distribution 20:80		●
Eyepiece	WF10X/18mm	●	●
Eyepiece	WF10X/18mm with reticule	●	●
Nosepiece	Quadplex, center adjustable	●	●
Objective	Infinity Plan 4X	●	●
	Infinity Plan 10X	●	●
	Infinity Plan 20X(S)	●	●
	Infinity Plan 40X(S)	●	●
	Infinity Plan 60X(S)	o	o
Polarization	Analyzer unit, 0-90°, can be moved out of the optical path for single polarizing observe	●	●
	Polarizing unit, can be moved out of the optical path	●	●
	Bertrand lens, can be moved out of the optical path	●	●
	λ Slip, First class red	●	●
	1/4 λ Slip	●	●
	Quartz wedge(I-IV Class)	●	●
Stage	Revolving round stage 360° rotatable Division 1° Vernier division 6’, can be locked	●	●



	Polarizing attached mechanical stage	o	o
Condenser	N.A=1.25 Abbe condenser without stress	●	●
Filter	Blue(build in)	●	●
	Green	o	o
	Amber	o	o
	Neutral	o	o
Focus System	Coaxial coarse & fine focus	●	●
Illumination	6V/20W Halogen Lamp	●	●
	6V/30W Halogen Lamp	o	o
	3W-LED Lamp	o	o
C-Mount	1X, 0.5X（Focus adjustable）	o	o
Weight/Volumn	7.5KGS/424527.5CM