Eschenbach Precision Biconvex Folding Magnifier 30mm 4X+6X=10X

Traditional, technical folding magnifiers provide the high power optics and durability to meet any industry standard. The unique bioconvex lens system eliminates extraneous colors. It consists of coated lenses that are cemented together using different types of glass. The result is crystal-clear optics with no color aberration. The biconvex lens provides a distortion-free image with superior optics throughout the viewing field. Dual lens of 4x and 6x power provide through levels of magnification (4x, 6x, 10x).
Magification: 4x+6x=10x
Lens Size: 30mm
Mount: black metal lens frame
Handle: Chrome-plated brass