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Donegan Optical Asperhic Stand Magnifier - 3X - Size: 2" x 4"
SKU: DONA-2072
Aspheric
magnifiers unlike spherical magnifiers provide an "orthoscopic" image.
Donegan 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 spherical lense.
Powerful 2'' x 4'' aspheric lens provides 3X magnification. Mounted in a
prefocused stand. Fits conveniently over surface to be viewed. |