I have Blue Planet 2.3x40mm opera glass binoculars which have a quoted 28 deg TFOV; however eye relief is right in your eyeball sockets as close as you can get. Individual eye focus and very light weight. Great for theater, concerts, sporting, and kid events. Hyades and Pleadies in same view Milky way looks great! Andromeda and Orion looks just like the sky charts. Hyades and Pleadies in same view!
Next I have 7x32 UW 14.0 deg TFOV binoculars, and these are heavy (outer 1 deg only useful to know something is there like planet but distorted). Able to see Hyades and Pleadies in two fields of view. Also great for theater, concerts, sporting, and kid events.
My last wide field binocular is my favorite 8x40UW 9.4 deg TFOV and I use this to help find stars that are naked eye visible (Brent Watson Sky Spot Telrad Finder Charts) for alligning my non-go-to 17.5" scope with Telrad finder. Once you find them in binoculars you can often still see them naked eye, and just allign the Telrad to them and the Messier or Overlooked objects are often in the field of view (or minor hunt and search is required if not).
My next favorite is 25x100 4.5 deg TFOV but this is not considered wide field, except that it is travel capable and I did take it to the top of Mauna Kea where I had the most spectacular view of M31 filling 80% of one field of view and expanding a full two field widths! I have never seen Andromeda look so good.
I have many others but I don't cosider these wide angles.
kanders2