Eyeglass/loupe
By: David Walter : July 1st, 2022-15:09
Many in the trade use ASCO eyeglasses, they are available in various strengths, 2x, 2.5x, 3x, 5x 10x etc The 10x was developed for hairspring and escapement work not general work. The ASCO lenses are also available in a blue tint to the lens which many fi...