These magnifiers of various magnifying powers have been long and widely used for preliminary inspection of microscopic specimens.
The Steinheil Loupe is designed as pocket able high grade, light weight magnifier. The cemented lens block is mounted on a light weight barrel made of black plastic and a sliding frame of the same material covers and protects both the lens surface from dust and mechanical damages. The frame forms a convenient handle for gripping the loupe.
20X - 7mm