Specification:
Magnification: 2.5X, 3.5X
Working distance: 320-420mm
Depth of Field: 90mm/80mm
Field of view: 100mm/60mm
Using: Cardiac surgery, Dental ( Dental implant), Digestive Surgery,Stomatology, orthopaedics surgery,Gynecology, Brain Surgery, Plastic Surgery.

How to adjust and wear the magnifying glass:
1. Put on the magnifying glass and tighten the mirror strap.
2. Adjust the angle of the lens, find an object point as a reference object, and move back and forth to find the clearest distance. If the image of the reference object is clear without ghosting, it can be used directly.
3. Two-level hinge adjustment design, the angle of the magnifying glass can be adjusted up and down, suitable for different work needs.
4. Adjust the pupil adjustment knob, first adjust the interpupillary distance to the maximum, and then slowly reduce it until the images seen by the two eyes are in a circle, clear and without ghosting. In addition, this magnifying glass has a preset working distance, which can be adjusted back and forth within the preset distance to find your most suitable focal length position.
5. The conversion clip device is used to convert the easy-to-wear type into a magazine type. Use a screwdriver to replace the easy-to-wear goggles, take out the conversion clip, and install the spare screws. After completion, it can be directly clipped on the glasses use. (Easy-to-wear style)
6. The lens locking button is used to fix the direction of the lens, please do not loosen it.