For those looking to try underwater photography, Sony has introduced marine packs for some of its W series and T series Cyber-shot digital cameras.
The MPK-WE marine pack (about $135-$200, Compare Prices) works with W series Cyber-shot models, while the MPK-THH and MPK-THGB marine packs (about $155-$230, Compare Prices) work with T series models. The marine packs offer waterproof protection up to 132 feet.
In addition, Sony has introduced sports packs that allow underwater photography up to about 10 feet in depth. The SPK-WB sports pack (Compare Prices) works with the Cyber-shot DSC-W290, while the APK-WB (pictured here, Compare Prices) and the APK-THAB work with certain W and T series Cyber-shot models. The sports packs cost between $60 and $100.
Just make sure the Cyber-shot model of camera you own matches the underwater housing you want to buy.
Photo courtesy Sony

Comments
hii..thats pretty cool..but i wanted to know whether this camera accesories affect its functionality…
The case is well built, and I have every confidence in its ability to protect my camera even down to 40 meters.
hi, that is so cool, id love to buy one, which outlets stock these digital cameras?
You should be able to find some of those products at the SonyStyle.com Web site, or you can read my story on underwater photography, linked below, that provides more information and product ideas.
Good luck!
Kyle
http://cameras.about.com/od/accessories/a/underwater_cam.htm