Released in 1975, the Compuwriter IV holds two filmstrips, each holding four fonts (usually Roman, Italic, bold, and bold Italic). It also has a lens turret which has eight lenses giving different point sizes from the font, generally 8 or 12 sizes, depending on the model. Low-range models offer sizes from 6- to 36-point, while the high-range models go to 72-point. The Compugraphic EditWriter series took the Compuwriter IV configuration and added floppy disk storage on an 8-inch, 320 KB disk. This allows the typesetter to make changes and corrections without rekeying. A CRT screen lets the user view typesetting codes and text.