Donegan DA-7 OptiVISOR Headband Magnifier, 2.75X

Donegan DA-7 OptiVISOR Headband Magnifier, 2.75X Magnification Glass Lens Plate, 6" Focal Length (working distance 152mm)

OptiVISOR is a precision binocular headband magnifier which permits unrestricted user efficiency while reducing eye strain—leaves both hands free and allows three dimensional vision. Used by anyone whose profession or craft requires close accurate work. Can be worn over prescription or safety eyeglasses.

○ Optical glass prismatic lenses: Ground and polished to precision optical standards—bevel edged and mounted in an interchangeable plastic frame
○ It tilts: Adjustable pivots allow the visor to be tilted out of the way when not needed and at your fingertips when you need magnification
○ Adjustable headband: Conforms to fit all head sizes—fabricated from a special blend lightweight material. Comfortable when worn for long periods of time.
○ High impact visor: Provides a tough, durable, always-new appearance
○ Genuine leather comfort band: Padded orthopedic felt adds to comfort

Please note:
For best results, choose the lens the with the lowest power necessary to accomplish your task. This is because the greater the magnification you use, the shorter your focal length will be and the smaller your field of view will be. Choosing the minimal magnification ensures the best possible field of view and focal length as you work.

Please note that you are purchasing a Genuine OptiVISOR (by Donegan USA). Donegan Optical Company has been in business over 60 years and is known for its consistent quality and precision optical products. All lens and loupes are designed and manufactured in the United States.