4.0x Magnification Professional Loupes with Silver BP Sports Frame for Dental, Surgical, Jeweler, or Hobby | Adjustable Pupil Distance Model #CH400

Spark Professional Loupes come in many models and working distances, with clip-on, headband, and attached headlight models available. Product ships with regular(R) working distance unless you send us a message with a size, custom distances can be made upon request as well. Distance in Millimeters. Loupes can be worn without prescription lenses if you are not strongly near or far-sighted,but if your prescription is over 200 or 2.25(positive or negative)it is strongly recommended that you use clip-on loupes,headband loupes, ask us for the half frames,or have prescription lenses put in to your frames for metal frames(sports frames need to require RX inserts,which we can provide).

Specification:
Anti-glare coating which reduces light reflection to 0.3%.
Full clarity of vision across entire field of view, no blurring around the edges.
Adjustable pupil distance and viewing angle.
All frame models have a convenient, flip-up design.
Included accessories: Instructions, grip flip, lens cover, head strap, screwdriver, cloth case.
Lightweight loupes with Kepler lens arrangement, very light for the quality, weighing less than a small cell phone (~65g).
BP Plastic Sport Frame, Prism Optics, available in S (280-380), R (360-460), L (440-540), XL(500-600) working distances.
It is light plastic construction and durable plastic and metal construction with advanced dual lens technology.
Pupil distance adjusts with one simple knob.
Field of View 70-75mm.