See-Sharp Focusing Device for Photographic Enlargers
Great condition. There is some minor wear on the metal due to age and normal wear, such as small scratches or worn paint. Please see pictures for more details.
Place See-Sharp on the enlarger easel, view it from the normal reading distance. The image on the ground glass will be in the same focus as the image projected on the easel. The See-Sharp image, however, is magnified and far brighter than the easel image. When it's sharp on the See-Sharp, it's needle sharp on the print. U.S. Patent 2,110,324
