fujinubee

When I travel, I find the 10-24mm and the 18-135mm zooms to pretty much cover everything I want to shoot. You might want to take your 23mm lens for shots in the hotel or boat you may be on, but the 18-135 is my go to lens for its wide range of zoom. the 10-24 is great in older cities where the streets are narrow, or trying to get that shot of a cathedral without having to back up a block. Both of these lens do a great job. 

what’s TPA? I looked it up an nothing pertaining lenses came up.
 
If you mean third party adapter ( I really think that the use of acronyms should be as sparing as possible ) there are lots ( cheap or expensive and there are many threads on those already so use the search ) but of course the great majority don’t allow for autofocus or transferring any electrics or electronics from lens to camera. There are only a few and incredibly expensive ones which can do that.
 

You are in "C" mode.
In "C" continuous AF mode Eye AF does not work.
Face detection works, but not "eye"
Eye detection works only in "S" single.
 
 

Do you mean the 23mm/f1.4? Have you moved the focus ring on the lens forwards for autofocus mode?