I am upgrading my Cokin P GND setup to the Lee Foundation Kit + filters, but can't figure out which 77mm adapter ring I need. There are 3 options: 77mm adapter ring, 77mm hood adapter ring, and 77mm wide angle adapter ring.
My widest lens is 17mm, on a 1.3X crop, but I almost definitely will be going full-frame at some point in the future. So the question is, will the normal 77mm adapter cause vignetting at 17mm on FF, or is the 77mm wide angle required? And I'm not entirely sure I understand the 77mm hood adapter -- you can use your hood with the adapter ring still in place?

