Since 1937, the Magni-Focuser Bi-Focal ® loop has been providing excellence of detail to medical professionals, jewelers, photographers, quality controllers and hobbyists.
- Fits over glasses
- Binocular flip-up magnifier w/ interchangeable lens units
- Shatter & scratch resistant optical acrylic lenses
- Len size 3 1/8" X 1 1/8" (79mm X 28mm) no post
- Contoured padded vinyl headband is ratchet adjustable for a perfect fit
- High impact, non corrosive ABS plastic construction
The working distance of each magnifier varies based on the strength. The following represents the working distance for each:
- 1.75X - upper working distance is 14"
- 2.25X - lower working distance is 8"
- 2.00X - upper working distance is 10"
- 2.75X - working distance is 6"