Thank you for the information Moray Eel. Of course I plan to be a good scuba diver first. That's why I want to do a survey first. Since these scuba equipments can be very pricey, I may want to buy the suitable lens or lenses first before getting the housing. I've always wanted to get the 45mm macro but now I've to consider getting a wide lens too. I will let you know on the housing you're letting go after I become a certified diver if it's still available. Btw, is there a link where I can have a look?