I have not seen this new show; however, in a TV piece about the hanging it appeared many are from the past. If, this is true, i have seen several of his shows. The art center here in Atlanta had a showing several years ago and I found the images to big for the space and therefore very diffiuclt to view (if that makes sense). One on going "knock" about his work is overprinting. His printing map looks like a nightmare in the making.
I aways felt his early 60's stuff had to much contrast which was not very attractive for portraits. However, he also did a piece about mental hospitals with a 35mm camera, very grainy, very emotional and very moving. Interesting juxtapositon of work.
I do know that one whole series a few years ago where taken with an 8 X 10 using a tent of white, where he placed the subject .