Assembling Fixed Field Angle Lens; Assembling Zoom Front Lens; Assembling Zoom Rear Lens; Cleaning Lens - ETC Source Four jr Assembly Manual

A s s e m b l i n g F i x e d F i e l d A n g l e L e n s
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A s s e m b l i n g Z o o m F r o n t L e n s
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A s s e m b l i n g Z o o m R e a r L e n s
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C l e a n i n g l e n s
W A R N I N G :
Remove dust with a blast of oil-free air or wipe with a clean, lint-free cloth. Isopropyl alcohol,
distilled water or a 50%-50% mixture of each can be used to clean the glass surface.
8
Place the lens (6, 7 or 8) on the lens holder (1, 2 or 3) between the tabs. The paint
dot should be on the side opposite the tabs.
Position the lens by centering the paint dot above the bottom tab notch, as shown
in Figure 8. This will keep the paint dot visible after the fixture is fully assembled.
Center one Tinnerman clip (18) on each tab, and press clip until it is fully seated.
If clips are in uneven positions, lens will be tilted or loose.
Firmly press the clips down and then push the spine of each clip towards the
center of the lens. This will ensure that the clips contact the lens surface.
Check lens and make sure the clips hold it securely.
Snap the bushings (17) onto the lens holder assembly as shown.
Position the lens (9) between the lens holder (4) and the lens cover (11) so that
the convex side of the lens faces the lens holder, as shown in
Align the holes in the lens cover with the holes in the lens holder as shown.
Secure the lens cover and the lens to the lens holder using screws (14) and
locking nuts (15). Tighten securely to ensure the lens cannot move.
Snap the bushings (17) onto the lens holder (4) as shown.
Slide spacers (16) over the PEM studs of the secondary aperture plate (13), as
shown in Figure 8.
Insert the PEM studs on the secondary aperture plate (13) through the holes in
the lens holder (5).
Position the lens (10) between the lens holder (5) and lens cover (12) as shown.
The blue orientation marks on the lens should face the lens holder.
Insert the PEM studs of the secondary aperture plate (13) through the lens cover
(12).
Secure the lens cover, lens, and aperture plate using nuts (15).
Snap the bushings (17) onto the lens holder (5) as shown.
Do not use ammonia-based or other harsh commercial cleaners. Clean lens
only as directed.
Commercially available glass cleaning agents should be avoided as they
may contain ammonia, other harsh chemical detergents or abrasive agents.
These cleaners may damage the glass surface and the Anti-Reflective
coatings. Do not immerse or soak the glass in any cleaning solution.
Figure 8.
Source Four jr/jr Zoom Assembly Guide