ETC Source Four - Page 18

16 Source Four Assembly Guide
Lens Markings
The lenses are color-coded for identification. Normal lenses have a single dot of color while
Enhanced Definition lenses have a combination of white dots and color dots. See Figure 16
for lens color coding.
Standard Lenses
19°
26°
36°
50°
19° ED
26° ED
36° ED
50° ED
Rear lens - 1 white dot & 1 blue dot
Front lens - 1 white dot & 1 red dot
Rear lens - 1 white dot & 1 yellow dot
Front lens - 1 white dot & 2 red dots
Rear lens - 1 white dot & 2 blue dots
Front lens - 1 white dot & 1 orange dot
Rear lens - 1 white dot & 3 blue dots
Front lens - 1 white dot & 1 green dot
Lens - Red Dot*
(one or two dots)
Lens - Black Dot*
(one or two dots)
Lens - Yellow Dot*
(one or two dots)
Rear lens - Blue dot
Front lens - Orange dot
Align lens dots toward this end
Enhanced Definition
Lenses
Figure 16
* Some pre-2006 fixtures have lenses with two color code dots. There is no difference between lenses with
one dot or two dots.