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I should mention that by audio insulated I do not mean 100% insulated but would just like to know if it is better to be quiet under helmet or be able to hear as much as possible.

One more question regarding the picture here you submitted. Did you have any freefall on that jump? And how did you secure your camera and where? Thanks I really like the pic :-))

Thank you all for advices, and that is a nice picture, cant wait to try it this weekend :)) And what shutter speed do you use with f8?

I have a Canon Rebel XT and I got a Peleng 8mm fish eye lens. I am planing to use it while skydiving. Since I will have a camera mounted on my helmet or my leg I will have to set all the exposure setting while on the ground since the lens is manual and will not be able to change any settings while in the air. Therefore I am looking for a advices how to set up correct exposure settings before a jump, what I have in mind now is to take a few pictures on the ground and set it up according to that. Does anybody here have some kind of experience or advice for me, like what is the best aperature to use so everything is sharp and so on, thank you!!!