Ikelite 6961.08 User Manual page 11

2. If using an optional Gear Sleeve, place it in the Port
Base with the teeth side facing away from the housing.
Lens Port
Optional
Gear
Sleeve
O-ring
3. Slide the Lens Port onto the housing Port Base and press evenly
down towards the housing until it stops. There should be a very
thin, even gap between the bottom of the port and the housing
front.
4. If using a dome with a shade, rotate the lens port gently so that the
wider extensions are oriented on the top and bottom. If the shade is
not aligned properly, it may cause vignetting (dark shadows in the
corner of the image).
Port Base
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