This is a set of Part 1 and Part 2 of the professional training VHS "Color Plate Making" supervised by the Printing Society Publishing Department. Produced by Dainippon Screen Manufacturing Co., Ltd. (now SCREEN Holdings), this is valuable technical material that details plate-making techniques from the analog era, the principles of color separation, and the mechanisms of color scanners. It was an expensive specialized training material at the time, with a list price of 25,000 yen (excluding tax). Recommended for those interested in the craftsmanship of plate-making techniques before the spread of DTP, and the history of industrial technology in the Showa era. [Contents] ●PART 1: How Color Printed Materials Are Made (approx. 19 minutes) ・Overview of printing ・Planning and design process ・Plate making (color separation/halftone dots) process ・Plate making to printing process, etc. ●PART 2: Principles of Color Separation and Color Scanners (approx. 26 minutes) ・Relationship between color and light ・Color separation experiments and principles ・Scanner structure and operation ・Image processing (color correction/sharpness), etc. [Condition] ・The case has some scratches and light soiling due to age, but there is no major damage such as cracks. ・The tape appearance is relatively clean, but **operation is unconfirmed (sold as junk)** as there is no playback equipment available. ・Please understand that this is an old magnetic tape product before purchasing.