There are a lot of excellent Chinese lenses out there today, but Laowa’s line up is extremely impressive and a great value. I plan on adding a few of their lenses to my collection in the near future once they release their magic format converter, but until then lenses like the Laowa 15mm Zero-D are on my short list for shooting Astrophotography.
Laowa Zero-D 15mm: Venus Optic / B&H Photo/ Amazon / Adorama