Assembling Lens Tube - 19° To 50 - ETC Source Four Assembly Manual

For maximum gel life with specific lens tubes, refer to the tables below.
Lens Tube
19°
26°
36°
50°
ED Lens Tube
19°
26°
36°
50°
Assembling the lens tube
Tools Required:
• #2 Phillips head screwdriver
Step 1:
Step 2:
Step 3:
Lens
Lens support pad
Lens holder
casting
Step 4:
Step 5:
Step 6:
N o t e :
Step 7:
Lens Tubes - 19° to 50°
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Soft Focus Back
(Lamp "flat") (Lamp "cosine")
worse
worse
better
worse
Soft Focus Back
(Lamp "flat" (Lamp "cosine")
worse
better
better
better
Place the left and right lens tubes (1 & 2) face up on your work surface. Align the
tubes so the colorframe grooves are to your left.
Install lens support pads (11) as required inside both lens tubes. Four pads are
required per lens. Insert pads short-side down, as shown in
Install the 1/4-20 hex nut (14) in the left lens tube as shown.
Figure 17
Install the short end of the gel retainer clip (8) in the left lens tube (1).
Position the clip in the forward, locked position, then install the retainer spring
(15) on the clip.
Install the required lens (or lenses) (3, 4, 5, 6, 7, or 8) in the correct position as
shown on Figure 15.
Install the lens with the painted dot facing the front of the tube. Seat the lens in the
support pads so the dot remains visible.
See Figure 14. Invert the right lens tube (2) and hold it above the left lens tube
(1). Fit the clip (8) and spring (15) into the right lens tube. Gently place the right
lens tube onto the left lens tube, making sure that the 1/4-20 hex nut and
Sharp Focus Soft Focus Forward
(Lamp "peak")
better better
better better
better worse
better better
Sharp Focus Soft Focus Forward
(Lamp "peak")
better better
better worse
better worse
better worse
Soft Focus Forward
(Lamp "cosine")
not applicable
not applicable
not applicable
not applicable
Soft Focus Forward
(Lamp "cosine")
not applicable
not applicable
not applicable
not applicable
Figure 14.
Hex nut
Lens holder casting
Figure 18
17