How to get manual focus Nikon 105 VR lens in Nexus housing

Hi, I'm buying the Nexus housing for my Nikon D200 camera and 105mm VR lens. I'm hearing that there's no focus switch knob s.m.c. on this housing.

Is there any other way to get the camera to focus manually or at least keep the focus once it's done so the lens doesn't keep going back and forth all the time in low light conditions?

Any ideas are welcome!

Thanks, Erika.

Contributed by Erika Antoniazzo added 2007-07-30

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Fantasea Line is an international company that has been involved in diving, water sports and photographic industries for nearly 40 years.

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Heron Island Bliss - a Family Diving Holiday: by Wandy Hochgrebe; A place like Heron Island is a great destination for families by offering a variety of activities all throughout the day, catering to people of all ages and interests. One can do a single boat dive and be back to spend the rest of the day exploring the island with or without expert staff, read books, hang by the pool or at the end of the day join the sunset cruise. There is plenty of time to relax and no worries about having to get any chores done.