| 摘要 |
A masking device for cropping photographs which are viewed on a view screen of a photographic printer. The masking device allowing the operator of the photographic printer to see exactly what portion of a photograph is being cropped prior to the printing of the photograph. The mask further providing a key for signaling the electronic system of the printer how much paper should be advanced for the cropped photograph and correcting the exposure setting of the printer. |
