Remove one
screw.
Lens barrel
ear with
screw.
Page 2 of 2
To install the Grid Louver:
Step 1: Remove the screw from the front ring as shown in the illustration. Do not remove the other screws that attach
the ring to the upper rails.
Step 2: Place the Grid Louver over the front ring.
Step 3: Secure the Grid Louver and front ring with the screw.
To install the barrel:
Step 1: Slide the barrel down over the lens rails, aligning the three ridges of the barrel with the ridges on the housing.
Step 2: Tighten the three 4mm hex screws into the ears on the lens barrel.
Partially tighten each screw, working progressively around the barrel until all have been tightened to
25in-lbs (2.82 Nm). DO NOT OVERTIGHTEN.
The nylon washer should be tightly sandwiched between the two flanges at each screw connection.
