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PREPARATION OF THE LENS
Depending on the lens used, there are a number of gear options possible. Using the right gear (s) and correctly mount-
ing them on the lens is very important for a smooth housing operation. Use the following chart to determine which
gear(s) to use and follow the installation directions for each gear carefully. Since the aperture control is achieved through
the Sub-Command Dial, the use of AF types of lenses is mandatory. The focus/zoom gear can vary from one lens to the
other.
Gear selection chart
PRODUCT # GEAR/LENS
18689 Slip-on focus gear AF 16mm f/2.8
18670 Slip-on focus gear AF 60mm f/2.8 Micro
18679 Slip-on focus gear AF 105mm Micro
18690 Zoom gear AF 17-35mm f:2.8
18674 Focus gear AF 20mm f/2.8, AF 60mm f/2.8 Micro
18683 Auto/Manual Focus Selector for AF 60mm f/2.8 Micro
18682 Auto/Manual Focus Selector for AF 105mm f/2.8 Micro
18656 Focus gear AF 200mm f/4 D
18696 Zoom gear AF 12-24mm f:4 DX and AF 18-70mm
18699 Focus gear AF 10.5mm f:2.8 DX fisheye
If the camera is set in manual focus a focus gear must be mounted on the lens. If you are using a zoom lens with a
zoom ring the camera must be on auto focus, also note that if using an 8" dome port you may need to install a close-
up diopter on the lens to correct the minimum focusing distance of the lens so that it will be able to focus on the virtual
image created by the dome.
Focus Gear installation:
1. Set the lens to minimum focus distance.
2. Mount the focus gear over the focus ring of the lens such that the round indentation etched on the side of
the gear is facing the rear of lens and is aligned with the Distance Index of the lens (for full gears orientation
is immaterial).
3 (a) For Slip-on gears (gears without mounting screws): Slide the gear over the lens and align the gear with the
front of the lens focusing ring.
(b) For gears with mounting screws:Tighten the three set screws evenly. Tighten each screw approximately ½ a
turn working around the gear until all the three (3) screws are tightened, and the gear is concentric with the
lens body.
CAUTION: Do not over-tighten these screws, as this might bind the lens- thus restricting the rotation of the
focus ring and/or damaging the lens. Conversely under-tightening these screws might cause the gear to slip
or lose alignment.
4. Rotate the focus ring several times to make sure it moves smoothly and the gear does not slip before closing
the housing
Refer to the Lens Chart on www.aquatica.ca for updating of lenses that can be used in the housing.
WARNING: Never attempt to operate the camera in autofocus mode with the lens mounted focus gear
engaged. This might cause serious damage to your camera or to the lens.
Zoom lenses: When using a zoom lens, the focus/zoom gear should be mounted on the zoom lens control.
The housing focus control becomes the zoom control. Focusing of lens is achieved by using
the camera's autofocus system.
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