Made in the USA by Donegan Optical
Aspheric magnifiers unlike spherical magnifiers provide an \"orthoscopic\" image. Aspheric lenses are shaped with a variant radii calculated to produce a sharp image right to the edge of the lens. This allows for distortion-free viewing over the entire lens area with greater magnification than is possible with a normal magnifying lenses.
Available in the following Models:
B-2024 Powerful 2\"x4\" aspheric lens provides 3X magnification, and a comfortable handle.
C-2028 Powerful 5X aspheric lens mounted in a pre-focused stand allows users to view large 60mm. area. Great for any activity requiring distortion free viewing at higher magnifications.
D-2060 Same powerful 5X aspheric lens as used in the C-2028 magnifier, conveniently mounted in a hand held reader. Compact design easily fits into pocket or purse.
A-2072 Stand A 3X aspheric rectangular lens mounted in a pre-focused stand. Fits conveniently over surface to be viewed.
A distortion-free desk magnifier with flexible goose neck and weighted stand. This unit meatures a light weight 4\" diameter optical grade 4X magnification acrylic Lens, mounted on a 12\" flexible arm for convenient use.
Made in the USA by Donegan Optical
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Made in the USA by Donegan Optical
1/2\" Lens 8X Magnification
3/4\" Lens 6X Magnification
1\" Lens 5X Magnification
Donegan brand OptiVisor is a precision binocular headband magnifier which permits unrestricted user efficiency while reducing eye strain which is made in the USA.
Other benefits include:
- 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 are round and polished to precision optical standards. ABS high impact visor is chemical, grease, and flame resistant. Readily adjustable headband is made of electrically nonconductive ABS material and is padded with orthopedic felt for comfort.
Available, by Model No., Magnification, and Focal Length, are:
DA-2, 1.50X, 20\" focal length
DA-3, 1.75X, 14\" focal length
DA-4, 2.00X, 10\" focal length
DA-5, 2.50X, 8\" focal length
DA-7, 2.75X, 6\" focal length
DA-10, 3.50X, 4\" focal length
Interchangeable lens plates are also available.