A double-lens magnifier originally designed for the exacting work of hand tooling photo-engraved printing plates. It has near universal application in precision work. Has 2 plano-convex lenses to provide a corrected wide, flat field.
Magnification power of 3.5X with 3" focal distance. Lens diameter is a generous 40mm (1.6").
Magnification power of 3.5X with 3" focal distance. Lens diameter is a generous 40mm (1.6").