Focus Scale Loupe,10X,20.3mm Lens Dia.

Focus Scale Loupe, Power 10X, Diopter 16D, Focal Distance 1 in, Lens Diameter 20.00 mm, Features High Resolution, Achromatic, Color Corrected Lens, 360 Degrees Clear Acrylic Base, Optional Light Source, Optional Reticules With White Markings, Comes Complete With Measuring Reticule, Focusing From +2 To -2 Diopter With A Smooth Helicoid Focus Mechanism, Includes Protective Carrying Case, Lens Cleaning Cloth