Main Characteristics: the pupil distance can be adjusted by left/right knob, it can be adjusted to more suitable 
position and you can see the fine image.

Main Characteristics: the pupil distance can be adjusted by left/right knob, it can be adjusted to more suitable position and you can see the fine image.
Mainly technical specification:
| Item No. | Magnification | Optical System | Working distance | Viewing Angle | Field of View | 
| ADM5 | 5X | Prism Optics | 300-600mm | Adjustable | 60-70mm | 
| ADM6 | 6X | Prism Optics | 260-580mm | Adjustable | 55-65mm | 
| ADM8 | 8X</ |