Black Plastic Eyeglass Focal Length 4.0″

Description

Made from plastic, this black plastic eye glass is held in the socket of the eye and has a 4″ focal length, magnifying your work two and half times.

The focal length refers to the distance between the piece of work and the eye, as different people have preferred distances of working, the shorter the focal length, the greater the magnification.

Our plastic eyeglasses are available in a variety of different focal lengths, allowing you to find the ideal working distance for jewellery making or watchmaking.

The diameter of this eyeglass where it is held in the eye socket measures 4cm.

Catalogue Page Number p770