thx, for a link, btw is it possible to use zoom in UW housing?
Sorry, the important points are that:
1) Any properly designed housing --especially Oly's-- should work work with
standard forcal-length zooms (such as the 14-45 or 14-54).
(this issues is actually more complicated, depending on whether you are using a flat, a generic domed, or a focasl-length-specific domed port, as is explained in
http://www.seafriends.org.nz/phgraph/film.htm#port (NOTE, however, that it is no longer only Nikonos that attempts to compensate for this)
2) Both these will be usable, but a bit problematic underwater because a) the refractive index of the water and the water/air interface will reduce the angle of coverage considerably, making the wide 28mm equivalent of your lens closer to 40mm equivalent
3) The 14-54 will be more usefuil because, in all but perfectly clear water (rare!) you will want to get as close to many of your subjects as possible, not only to take small subjects, but also to reduce the amount of often particle-filled water between them and the camera.
Its extra speed is also very useful by allowing some existing light images and needing less flash for others, thus illuminating less intervening crud. (This is btw, a seldom-mentioned but important benefit of the C5050Z fast lens)
The real complexity and cost of UW photography, and watching others struggle with massive UW rigs is one reason I've stayed with the C5050Z and PT-15. However, the E-330 seems to be posing an interesting intermediate solution, and the increasing array of relatively affordable housing options for it suggests that serious UW photyographers are finding its Live View a uniquely effective tool.
--
erichK
saskatoon, canada