Since I purchased the Tamron 28-75mm f/2.8 lens, I have seldom used my Sigma 30mm f/1.4 lens for Sony APSC.
I also have a Rokinon 12mm f/2.0 lens that is a great lens except: 1. no auto focus and 2. APSC format only.
I am going to sell both of the above lenses and use the funds to purchase a Rokinon 14mm AF f/2.8 lens. Actually, I will be making some money on the deal since I am getting a used 14mm for less than $400 USD...
That way, I will have a lens that I can use on both my APSC cameras and my full-frame, A7iii. The 12mm lens is an equivalent 18mm on an APSC camera. The 14mm is an equivalent 21mm on an APSC format camera but it is a much wider 14mm focal length on my A7iii. I think that I would have a lot more versatility with the 14mm (with the option to use it on either the full frame and crop format cameras) than I have with the 12mm which I can only use on my APSC camera.
I can live with the one stop difference between the f/2.0 and f/2.8 to gain AF and the full frame capability...
I don't shoot a lot of wide angle images so, I won't be looking at the Sony 16-35mm or the Tamron 17-28...