First, while this is my first post, I have enjoyed this forum for a while now and have been extremely impressed with the time, professionalism, and patience its members have in helping all of us become better photographers!! Kudos and thanks!!

Now onto my dilemma:

I have a Nikon D90 and I just finished a class in HDR photography. While the instructor discussed manual bracketing, I personally do not want to have to touch the camera when taking a series of images for HDR processing. My D90, like most Nikons in the mid-range and below, seem to limit the auto bracket set to 3 exposures (with 2 EV max between shots). OK for HDR, but at times not optimal. I was hoping to find a way to remotely control my D90 with my iPad 2 (or any remote cable) so that I can manually bracket by controlling the shutter speeds remotely. I am not aware of any remote cable for the D90 that will allow me to adjust shutter speeds and the only iPad controller I found is "onOne"'s software which requires you to have your camera tethered to a computer also (with WiFi to communicate with your iPad).

So, is anyone aware of any way I can remotely control my D90 (adjust shutter speed remotely) without having to lug a computer around? While I personally wish I could find a cable to do this, I would be OK with a method of using my iPad since I usually will have that with me also. I want to attempt HDR photography while I vacation this spring in Europe, but I am trying to limit the gear I will be lugging with me.

Thanks for any and all advice!!