Model		CX-31
Optical system		UIS2 (Universal Infinity-corrected) optical system
Illumination		Built-in transmitted Koehler illuminator 6V30W halogen bulb 100-120V/220-240Vg 0.85/0.45A 50/60Hz
Focusing		•Stage height movement by roller guide (rack & pinion) •Stroke per rotation: 36.8mm •Full stroke range: 25mm •Upper limit stopped by simplified pre-focusing dial •Tension adjustment on coarse focus adjustment knob
Revolving nosepiece		Fixed quadruple nosepiece with inward tilt
Observation tube	Type	Binocular	Tilting binocular
	Field number	20	18
	Tube inclination	30	30~60
	Interpupillary distance adjustment range	48—75mm	48—75mm
Stage	Size	188(W) X 134(D)mm
	Movement range	76mm X-direction X 50mm Y-direction
	Specimen holder	Double slide holder
	Rubber grip	Equipped as standard
Condenser	Type	Abbe condenser, with built-in daylight filter
	N.A.	1.25 with oil immersion
	Aperture iris diaphragm	Built-in
Dimensions & weight		233(W) X 411(H) X 367.5(D)mm, approximately 8kg (approximately 17.6 lb.)