Technical Parameters:
| 
			 Model  | 
			
			 BM-20A  | 
		
| 
			 Optical System  | 
			
			 Infinite optical system  | 
		
| 
			 View Head  | 
			
			 Compensation Free Trinocular Head, Inclined at 30°, 360° rotatable, interpupillary 55~75mm  | 
		
| 
			 Eyepiece  | 
			
			 P10X/22mm, P16X/15mm  | 
		
| 
			 Infinite Plan Achromatic Objective  | 
			
			 4X N.A=0.10 WD=20.00mm  | 
		
| 
			 10X N.A=0.25 WD=13.50mm  | 
		|
| 
			 40X N.A=0.65 WD=0.68mm  | 
		|
| 
			 100X(Oil) N.A=1.25 WD=0.20mm  | 
		|
| 
			 Focusing  | 
			
			 Coaxial Coarse & Fine Adjustable System, Range 30mm, Fine Division 0.002mm  | 
		
| 
			 Stage  | 
			
			 Double Layers Mechanical Stage 155*145mm, Moving Range 80*50mm  | 
		
| 
			 Condenser  | 
			
			 Abbe NA1.25 centerable condenser with Iris Diaphragm & Filter  | 
		
| 
			 Illumination  | 
			
			 Halogen lamp 6V/20W, Kohler illumination, brightness adjustable  | 
		
| 
			 Filter  | 
			
			 Blue, yellow, green  | 
		
| 
			 Power Supply  | 
			
			 AC85~265V, 50/60Hz  | 
		
| 
			 Package Size  | 
			
			 335*260*560mm  | 
		
| 
			 Gross Weight  | 
			
			 10kg  |