I'm no professional, but have had great results with pinning the quilt to a 1" X 4" X 10' board. Then I take it outside, and can face it any direction for best lighting. My sons can hold either side. But, I usually crop everything out but the quilt. I've also got some nice old fences to hang smaller quilts on. It helps to have a PhotoShop type program to adjust the edges to make them square. If you're not directly face-on, the perspective can make it look crooked, so that PhotoShop program has helped me a ton. Here's a couple examples.

I have learned that the best light is good old Mother Earth as shown in ube quilting's photo. If you can photograph a quilt full front you will be OK. Keep the sun behind you and not shoot into the sun. Hang a clothesline if you can because telescoping rods are nice but expensive.