Ok guys and gals I am looking into getting into this FPV adventure. What do I need to buy along with the HDMI module from dji? I will be using my iphone 5s or ipad mini 2. I just need a list of what I need to buy to make this work correctly etc. Thanks for the help

Here's a good starting point:  http://www.fatshark.com/product/dominator-v3/

For FPV flying I think your phone is way to small. I would use at least a Mini.
You can use a Hoodman http://hoodmanusa.com/
Or get a set of goggles with an HDMI input. http://www.getfpv.com/headplay-h ... eband-receiver.html
Or any other goggle with HDMI as the prior post suggests.

In addition, here is a tutorial of installing the HDMI module: