He had a huge and spectacular collection of cameras and used all of them a lot. This most likely are taken with the Hasselblad 500C, he has a couple of very wel

He had a huge and spectacular collection of cameras and used all of them a lot. This most likely are taken with the Hasselblad 500C, he has a couple of very well known pictures with the 80mm and the 120mm and the dates match. If you are into Ansel and gear get "The Making of 40 Photographs" were he details gear, exposure, composition and scouting and development process for 40 pictures. Also I think most of his well known pictures are 4x5 and not 8x10, he has a lot of spectacular 8x10s because he liked to contact print big, like the famous portrait of Edward Weston sitting in the tree in Carmel.