OPN/CLS(OPCS) Optical Printer Control System OPN/CLS(OPCS) NAME opn - open the fader shutter cls - close the fader shutter EXAMPLES opn # open the fader cls # close the fader DESCRIPTION opn and cls allow the user to open or close the fader directly. To move the fader to positions other than OPEN or CLOSED, use the SHU(OPCS) command to specify absolute degree positions for the fader. NOTES Specifying OPN or CLS during a pending fade or dissolve will effectively cancel the fade/dx, and send the fader to the specified position. The system will not acknowledge the ALLSTOP key until AFTER the fader has completed running to its position. OPN uses the INTERP(OPCSDEFS) command's [high] value to determine the degree position for OPEN on your system, and the [low] value to determine the degree position for CLOSED. See INTERP(OPCSDEFS) for details. SEE ALSO OPCS Commands CAM(OPCS) - shoot camera (fades/dissolves too) OPN(OPCS), CLS(OPCS) - open/close fader shutter SHU(OPCS) - move fader to an absolute position in degrees DXI(OPCS), DXO(OPCS) - set up dissolve in/out FDI(OPCS), FDO(OPCS) - set up fade in/out OPCSDEFS Commands FLOG(OPCSDEFS) - set Fader LOGarithmic curve for custom fades FRANGE(OPCSDEFS) - set fade/dx's degrees range (for Hicon film stocks) INTERP(OPCSDEFS) - set interpolation positions (fader, focus, etc) SLOP(OPCSDEFS) - correct for slop in a motor (fader, focus, etc) General MATH(DOCS) - math expressions (for use in frame specifications) SYNTAX(DOCS) - online calculator and OPCS math expression syntax INTERP(OPCSDEFS) - setup interpolations for fader, etc. ORIGIN Gregory Ercolano, Los Feliz California 11/29/89