Hey guys Im hoping someone on here photgraphs surfing (in the water, not from shore) but if not im thinkning you guys can still help me. I want to get shots like this (of course higher quality, i just wanted to show you the angles and stuff): http://www.richard-seaman.com/USA/Cities/SanDiego/Surfers/InABarrel.jpg http://archives.starbulletin.com/2005/10/23/promopic.jpg http://i.telegraph.co.uk/telegraph/multimedia/archive/01443/dane-reynolds_1443177i.jpg So now I have a 30d, canon 70-200 L USM F/4.0 and a Canon 17-55 f/2.8 IS USM. I'll probably be using the 17-55 for surf pics. My question is: DO I NEED A FLASH FOR THESE PICS? i'm wondering because I am buying a waterproof casing adn dont know If i should get the flash one or the regular one. here are the two i'm looking at: Ewa-Marine | U-B 100 Underwater Housing f/ SLRs w/ | EM U-B100 Ewa-Marine | U-BXP100 Underwater Housing | EM U-BXP100 | B&H Do you guys think I would need a flash or no? And If I did, do you think it would even be powerful through the plastic case that i'm buying? (I would be using a Canon 430ex II) Thanks!