I am a nikon user and using Nikon D7000 currently. I am using nikon 40 mm f/2.8 macro lens for macro photography. I am much interested in:

1. ultra-wide angle macro photography where I would able to present the tiny subject with its habitation and with much depth of field that could depict the whole environment.
2. ultra wide landscape photography
3. camera trapping.

Recently I found Laowa 15mm. But that is a total manual lens and I do not find it in Indian market. An auto-focus lens would be better. Asking you for better solution. Please suggest any of its kind (and please mention the Laowa's one too if it desires).

Thanking you,
Arun.