2. Graphic depiction of a single line set and the parts of a counterweight system. (A) Hoisting cables, (B) Turnbuckles, (C) Purchase line, (D) Arbor rod, (E) Spreader plates, (F) Cut steel counterweight, (G) Locking safety ring, (H) Rope stop/lock (brake)/Lock rail, (I) Tension sheave (block)

3. Fresnel spotlight

4. ellipsoidal spotlight

5. cyc(lorama) strip lights

6. Types of Lamps Incandescent will change color temp with age Quartz Halogen maintains stable color temp HID – halide iodide discharge HMI – hydragyrum medium arc-length iodide

8. Color Temperatures 1700 K Match flame 1850 K Candle flame 2800–3300 K Incandescent light bulb 3350 K Studio "CP" light 3400 K Studio lamps, photofloods, etc. 4100 K Moonlight, xenon arc lamp 5000 K Horizon daylight 5500–6000 K Typical daylight, electronic flash 6500 K Noon daylight 9300 K CRT screen

9. Colors Physical Primary Colors – Red – Yellow – Blue Physiological Primary Colors – Red – Blue – Green

10. Controllable Qualities of Lighting Intensity Color Distribution Movement