You need a 50mm f1.4 in your life
I have one but its DX
Are you sure ?
From what I know Nikon has four AF 50mm lenses 1.8D, 1.8G, 1.4D, 1.4G and all are FX lenses.
Nikon has very few DX primes like the 35mm, 40mm, 85mm and maybe I missed one more but I think that's it.
No I meant the lense I have is a 30mm sigma DC HSM. The DC stands for cropped does it not
Oh got it, I thought you meant you have a 50mm DX lens.
As for UV filter, there is no optical need for it, using one as protection is an individual decision.
I always said I rather get best out of my shot then worry about a little scratch on my lens, then I bought good lenses and since then all my lenses are proudly wearing UV filters for protection, I dont see any noticable IQ loss, for me its worth it for my piece of mind.