you are right about the caustics. people do tend to over do it on a normal basis. but most of them have never been diving (other then in for a few secs with a mask or in the pool) and so they have to believe that what they see on national geo in the carib. with all the pretty filters on the camera, etc. is normal for the whole world... but i do have to say that it does look nice when they are in there. it gives u a good illusion of what is happening. when i am not shure about if i should put somthing like that in a image i ussualy go watch some movies. movies are supposed to pertain to the highest crowd on what is believable (because they want to believe or because they fear its true, ie. jaws) lastly if u like how it looks then who cares what they think of it. i say that the only time i have to please someone else with what i put in somthing is when it is a gift or when i am getting paid for it.... so anyways who gives a $#!+.