I borrowed a photography backdrop stand a few months ago for some quilt photographs, and decided I should have one of my own. The setup consists of two vertical supports with a cross bar, and is adjustable in height and (somewhat) in width.
(I could have removed one of the top support sections for the above photo, but I didn't think of it at the time. You'll see below why it is set to the maximum width.)
When I placed the order, it was worthwhile to add enough to my cart to qualify for free shipping. The daily special was for a 10x10 muslin backdrop, so I added this to my order, along with a set of hanging clips. (I'll use the hanging clips for quilts without a sleeve, unless I use the muslin.)
To use the muslin backdrop, I guess it would be best to use two stands. But I simply pinned the quilt to the muslin, using basting-type safety pins from the back and pinning so that the pins do not show from the front.
The muslin makes for a cleaner background in the photos:
I think this setup will be especially helpful for entering contests, where sometimes the rules require that the entire front of the quilt be visible, with no clips or hands showing.
I also like that I can take photos without having to enlist multiple helpers, although it is still useful to have someone help thread the quilt or muslin onto the bar, and to keep things from toppling if a breeze stirs up. (This is not a setup to use in the wind!)
Here's another new photo using the equipment, although these are quilts I have shared before (here and here).
UPDATE: Here's a photo showing the hanging clips in use: