RECLAMATION work at Central and Wan Chai has been captured on film as part of a new Hong Kong Electric television commercial. The work was carried out by a team from Centro Digital Pictures on behalf of advertising agency Bozell after three months of intensive model making. Bozell's Michael Holt said the commercial aimed to show the extent of the Central and Wan Chai Reclamation work. Centro's model-effects director Mitch Lovett said the sequence relied on a combination of ''stop motion'' and ''motion control'' photography using a motion-controlled camera rig that had 10 axis of movement and a three-metre boom. The sequence was shot by pulling the camera back from the large model, and individually shooting each frame. The model makers then added the next layer of development on the reclamation project, and so on until completion. The smoothness of the speeded-up finished product was a tribute to the quality of Centro's motion control capability, Mr Holt said. ''Hong Kong Electric Co works very quietly,'' he said. ''However, it does work on an enormous scale, and it involves massive amounts of investment. We are trying to show just how big the job is to supply Hong Kong Island with electricity.''