The Bestwell Magna Sight Grain Focusing Sight is a tool to assist in the focusing of darkroom enlargements.  The Magna Sight has a large diameter mirror with a 2 inch glass lens that provides 10x magnification of the small details of your enlarged image, thereby making critical focus easier to attain. The large mirror of the Magna Sight allows this focusing unit to work well even when it is positioned away from the center of the enlargement and the larger glass lens makes viewing, particularly with glasses, much more convenient and comfortable.