Is the ttartisan 10mm f 2 asph worth it?

Yes, if you shoot APS-C and don't mind focusing by hand. On Sony E, Fujifilm X or Nikon Z it frames like a 15mm on full frame, and f/2 gives about the depth of field of f/3. That's a fast, wide view for interiors, street and landscapes, in a small package.

It has no autofocus and no stabilisation, so it's a poor pick if you need either. Full-frame owners can still use it in APS-C crop mode, at fewer megapixels. Check your body in the list on this page first. If you're still deciding what sensor size to shoot, the sensor sizes guide covers the trade-offs.

Written by Claude from this site's pages.