| Model No. | 						QS-L2010ZB | 						QS-L3017ZB | 						QS-L4020ZB | 					
											| Order No. | 						359-710-1A | 						359-711-1A | 						359-712-1A | 					
											| Feed mechanism | 						Manual | 						Manual | 						Manual | 					
											| Observation unit | 						Zoom: 0.75X – 5.25X (8X in 7 steps) | 						Zoom: 0.75X – 5.25X (8X in 7 steps) | 						Zoom: 0.75X – 5.25X (8X in 7 steps) | 					
											| Measuring Range X-Axis | 						0-8in 0-200mm | 						0-12in 0-300mm | 						0-15.7in 0-400mm | 					
											| Measuring Range Y-Axis | 						0-4in 0-100mm | 						0-6.7in 0-170mm | 						0-8in 0-200mm | 					
											| Measuring Range Z-Axis | 						0-6in 0-150mm | 						0-6in 0-150mm | 						0-6in 0-150mm | 					
											| Resolution/Length Standard | 						0.1µm/Linear encoder | 						0.1µm/Linear encoder | 						0.1µm/Linear encoder | 					
											| Image detecting unit | 						1/2-inch color CMOS camera 3 mega-pixels | 						1/2-inch color CMOS camera 3 mega-pixels | 						1/2-inch color CMOS camera 3 mega-pixels | 					
											| Digital zoom | 						1x-2x-4x | 						1x-2x-4x | 						1x-2x-4x | 					
											| Measuring Accuracy*1 | 						XY(2.5+20L/1000)?m 						Z(5+40L/1000)?m | 						XY(2.5+20L/1000)?m 						Z(5+40L/1000)?m | 						XY(2.5+20L/1000)?m 						Z(5+40L/1000)?m | 					
											| Stage glass size | 						9.84x5.91in 250x150mm | 						14.57x9.45in 370x240mm | 						17.32x9.45in 440x240mm | 					
											| Max stage loading | 						22lbs 10kg | 						44lbs 20kg | 						33lbs 15kg | 					
											| Illumination | 						Surface: co-axial light, fiber-optic ring light Contour, stage light | 						Surface: co-axial light, fiber-optic ring light Contour, stage light | 						Surface: co-axial light, fiber-optic ring light Contour, stage light | 					
											| Dimensions*2 | 						25x30x28in 624x769x722mm | 						27x36x33in 682x916x837mm | 						30x37x33in 757x930x837mm | 					
											| Main unit | 						160lbs 72kg | 						311lbs 140kg | 						321lbs 146kg | 					
											| Power Consumption | 						160W at max | 						160W at max | 						160W at max |