ETC Source Four User Manual page 7

Step 2: Insert the color frame.
Step 3: Lock the retaining clip by pushing sideways while gently pushing forward.
N o t e :
The performance of saturated colors may be less than desirable in any theatrical
lighting fixture, especially when equipped with a 750w lamp. For best results,
always use high-quality color media rated for high-temperature use.
ETC's optional Conical Gel Extender, part # 7060A1048, will provide maximum
color media life. For 14° lens tubes, use part # PSF1029. Gel Extenders are not
recommended for 70° and 90° lens tubes due to the extremely wide-angle beam.
A variety of heat shield products is also available from many color media
manufacturers. Follow the manufacturer's instructions for the use of these
products.
For maximum gel life with specific lens tubes, refer to the tables below.
Lens Tube
14°
70°
90°
19°
26°
36°
50°
ED Lens Tube
19°
26°
36°
50°
Soft Focus Back Sharp Focus
(Lamp "flat") (Lamp "cosine")
worse
best
best
worse
worse
better
worse
Soft Focus Back Sharp Focus
(Lamp "flat" (Lamp "cosine")
worse
better
better
better
Soft Focus Forward
(Lamp "peak")
good best
good worse
good good
better better
better better
better worse
better better
Soft Focus Forward
(Lamp "peak")
better better
better worse
better worse
better worse
Soft Focus Forward
(Lamp "cosine")
good
good
worse
not applicable
not applicable
not applicable
not applicable
Soft Focus Forward
(Lamp "cosine")
not applicable
not applicable
not applicable
not applicable
3