Focusing The Beam; Gel Notes - ETC CE Source Four jr User Manual

English
Caution! Improperly installed lamps cause premature lamp
failure and socket problems.
6. Press lamp retainers down across lamp base and clip securely.
7. To reinstall the lamp housing, line up the side fins and the bolt
hole, then tighten the knurled bolt to secure the housing.
Aligning the lamp
Use the two concentric knobs on the rear of the lamp housing to
align the lamp. The outer knob centres the lamp within the
reflector and locks it in position; the inner knob fine tunes the
field. See Figure 4 .
Important: Luminaire must be on to align the lamp.
1. Unlock the outer knob by turning it anticlockwise one turn.
2. Gently push the outer knob from side to side and up and down
until the lamp is centred in the field.
3. Once the lamp is centred, tighten the outer knob to lock it in
place.
4. Turn the inner knob right or left to adjust for optimum flat field.

Focusing the beam

On a fixed field angle CE Source Four jr, with a 26°, 36° or 50°
lens, adjust the lens position to focus the edge of the beam. On a
CE Source Four jr Zoom, adjust the position of both lenses to set
the beam's spread and to focus the edge of the beam. The Zoom
lenses give you a range from 25° to 50°.
1. Loosen the beam focus knob(s) on the underside of the barrel.
See Figure 5 .
2. Slide the lens(es) forward or backward to achieve the desired
beam edge.
3. Once the luminaire is focused, tighten the beam focus
knob(s).

Gel notes

For best results, always use a high quality, high temperature
colour medium. ETC does not guarantee performance with low
temperature, saturated colour gels.
8 • CE Source Four jr & CE Source Four jr Zoom
Lamp housing Knurled bolt
Centre Peak and flat
adjustment adjustment
(outer knob) (inner knob)
Figure 4
Beam focus knob
Colour frame
Figure 5