This compact and budget-friendly 10X hinged triplet loupe provides a sharp, distortion-free image; the loupe is ideal for use both at the bench and on the road, wherever magnification is needed. The matte-black color eliminates reflection and reduces eye strain. The triplet lens is made of three lenses, highly corrected for spherical and chromatic aberrations, bonded to eliminate the optical distortions encountered in single-lens loupes. The metal case swivels closed to protect the lens whenever the loupe is not in use. ITEM DETAILS 10x Magnification Power Focal length : 1" 18mm Lens Distortion Free Lightweight High-quality jewelers loupe that features distortion-free aplanatic (corrects for spherical aberration) and achromatic (corrects for chromatic aberration) color-corrected lens.