MITCHELL NC/NCR MOTOR & DOOR WITH "NORRIS" LPC-90 "LIGHT PRIORITY CONTROL"

INTERVALOMETER & LIGHT-METER. THIS SPECIAL SYSTEM OPERATES THE CAMERA'S EXPOSURE TIME OF EACH AND EVERY FRAME EXPOSED BASED ON THE AMOUNT OF ILLUMINATION DETECTED BY THE LIGHT-METER, (Asahi-Pentax Spot-meter) THAT IS AT ALL TIMES COMMUNICATING WITH THE LPC-90 INTERVOLOMETER, THAT IN TURN CONTROLS THE AMOUNT OF EXPOSURE TIME,  IN "MICR0-INCREMENTS" OF EACH FILM-FRAME EXPOSED.   

THIS SYSTEM CAN OPERATE FROM A MINIMUM EXPOSURE TIME OF 1/15 OF A SECOND ALL THE WAY OUT TO AS MUCH AS 16 MINUTES EXPOSURE TIME FOR EACH FRAME TAKEN.

A TOTAL RANGE OF 14 OR MORE F*-STOPS OF TRAVEL. "EXPLAINED IN THE MOST SIMPLE OF TERMS":  IN TOTAL BRIGHT SUNLIGHT, YOU START AT 1/15 OF A SECOND.   THEN...  AS THE SUN GOES DOWN..., THE EXPOSURE TIME SLOWLY..., AND IN MICRO-SCOPIC INCREMENTS,  

DROPS TO 1/8 OF A SECOND..., THEN TO 1/4 OF A SECOND..., THEN TO 1/2 OF A SECOND..., THEN TO 1 SECOND..., AND THEN TO 2 SECONDS... AND SO ON..., UP TO 16 MINUTES PLUS+.

EACH SYSTEM INCLUDES:   NORRIS LPC-90 CONTROLLER/INTERVALOMETER,   MITCHELL NC/NCR MOTOR MOUNTING DOOR & NORRIS TIME-LAPSE MOTOR, ASAHI-PENTAX COMMUNICATING LIGHT-METER,   ASRON 20-24 VOLT POWER SUPPLY, 4 PIN "DIN" CABLE ( a.k.a. Squiggly cable ) FOR MOTOR/CONTROLLER (Intervalometer)  COMMUNICATION,   2 PIN "LEMO" CABLE FOR LIGHT-METER TO CONTROLLER (Intervalometer)  COMMUNICATION,   AND MAIN POWER 4 PIN "XLR" POWER CABLE HARNESS TO POWER MOTOR AND CONTROLLER (Intervalometer), AND A "BANANA PLUG" POWER CABLE TO 4 PIN "XLR" FOR POWER SUPPLY CONNECTION. There is, and never was, or will be again, a system that worked in this way. The magic key to how to use this system is what you specifically decide to use as your light-meter's reference exposure target. COMES WITH ALL ORIGINAL "NORRIS LPC-90" INSTRUCTIONS, ON 8 &1/2" X 11" PAPER. (B + W)

NORRIS CONTROLLER/INTERVALOMETER LPC-90 S/N #999 (box #94)

NORRIS TIME-LAPSE MOTOR S/N #900 (mounts to Mitchell NC/NCR camera door) 

ASAHI-PENTAX SPOT-METER S/N#151391