Q:

Lens for Astrophotography/Landscape in a D5500

I just got started in photography this year, and I am looking to buy my first lens.
I am mostly focused in astrophotography (meaning pictures of the night sky, not through a telescope) and landscape photography.
I got a Nikon D5500 with the included lens (18-55mm VR) but I am torn between some very nice options, both the Rokinon 16MAF-N 16mm f/2.0 and Rokinon 10mm F2.8 ED AS NCS CS seem to be the top contenders (price to performance wise). checking online the first one seems to be the best option for astrophotography due to the amount of light it can gather, but the ultra wide FOV of the second one seems better for landscape, am I correct on that? and if so, is ultra wide really that good for landscapes?
Would it be really worth it to pay extra for a Tokina 11-16 f/2.8 PRO DX II to be able to put filters on the lens?
Lastly, if you know any better option within a 400$ budget, please let me know!
Thanks beforehand for your help!

A:

Tokina AT-X 116 PRO DX-II 11-16mm f/2.8 Lens for Nikon F check it out from this link https://www.bhphotovideo.com/c/product/882236-REG/Tokina_atx116prodxn_ii_AT_X_116_PRO_DX_II.html
This lens price is 369$ according to B & H store

