(1)     Designprinciple: two parallel beam paths optic system,  modularconstruction

(2)    Standard set:  SM optic head with 1.0x  planachromatic  objective

(3)   Zoom range: 0.62x-5x

(4)   Zoom ratio:8:1                          

(5)   Magnification:6.2x-50x  (with accessory lens: 1.9x-400x)

(6)   Working distance: 80mm (with accessory lens: 26mm-278mm)

(7)   Field ofview: 33.9mm- 4.2mm  (with accessory lens: 106mm-0.6mm)

(8)   Interpupillarydistance: 50mm-75mm  

(9)  Dioptriccorrection:     5 -- -5

(10)  Optionalobjective:     planachrmatic: 0.32x , 0.5x,0.63x   achromatic: 1.6x,2.0x

(11)  Optionaleyepiece:     WFH10x-D/21, WF16x,WF20x, WF25x,WF40x