I have an F828 and am eagerly awaiting to house this camera. I have been using a Sony DSC 85 in an ikelite housing for the last 2 + years. Some suggestions for the housing include:
1)Allow the pop up flash to work. In this manner your fail points will be reduced (no wet connector) and it allows a variety of strobes to be easily attached to the housing. A housing will be less attractive if you have a limited number of strobes to use with it.
2)Develop a dependable way to use the zoom on this camera. Sony changed this camera to strictly zoom by the ring on the lense, instead of having a dedicated button for it. Though zooming is not suggested underwater most of the time, for sonys it has an application with respect to macro mode, in that you turn the macro mode function on and zoom all the way in to achieve a nice magnification.
3)Make it as tight as possible. This is for a variety of reasons. The camera body is almost as large as a video camera, so it is big and bulky already. Ikelite’s housing gives you full control of the camera, but it is a huge box you bring down with you, not easy to swim with and not easy to get close to anything with, tight spaces, macro shots, close ups, etc.
4)I don’t personally believe the nightshot is an entirely important feature, but the red focusing beam needs to be able to have an unobstructed view of subjects, so the camera can focus properly at night. Most people are searching for color in their shots, so the infrared night framing won’t really have any use underwater.
5)Make the buttons, especially the scroll wheel, easy to access and use. This sony is annoying in that in order to change settings you must hold down the dedicated button (for example toggling the flash on and off) and scroll through the options at the same time. A poorly streamlined housing will almost certainly require both hands to do this, while an economically built housing might allow for a one hand operation on some of the features.
6)Make the switch between memory stick and cf card available. This will double the amount of memroy you are able to access on a dive. While most memroy sticks are quite large and this may seem unnecesary, this sony has fantastic video resolution of 640 * 480 and this eats up a LOT of memory. Though you are taking pics 99% of the time, you never know when a whale shark or school of dolphin might come by for a bit of a swim. Switching to video mode and having a dedicated cf card for this mid-dive will allow you to record quite a bit of video and still alow you to take pics when the moment eventually passes.
7)Definitely try and make it wet lense capable. Though you should try and go down with one type of picture styl in mind, wide angle, macro ext, it helps to have options. You never know what you might run into down there and being able to swap lenses underwater will only help. Just in case you were planning a macro dive and a nice saltwater crocodile decided to make a few passes. Now the dive boat might actually believe you because you were able to adjust on the fly.
8)Develop a double O-ring system like Olympus. This is one expensive camera and a flooded housing, while inevitable, will definitely ruin a dive trip. An extra $5 O-ring seems as if it would go a long way to sparing friends of the diver a bad trip.
9)Depth rating to 300 feet would be nice too =)
This is all I could think of right now but I think it covers most of the issues one might have with this sony underwater.
Hope this helps,
Zaid