You asked
What is the ttartisan 11mm f 2 8 fisheye good for?
The TTArtisan 11mm f/2.8 Fisheye is a manual-focus prime for full frame cameras. It's built for wide, dramatic views where you want to bend the whole scene into a curved frame. It has no autofocus and no stabilisation, so you'll focus by hand and need a steady grip or a fast shutter speed.
On full frame it frames at 11mm as marked. It also fits many APS-C bodies, where it gives a tighter view of about 16mm or 18mm, depending on the mount. For a full frame body, these are sensible pairings:
- Sony a7 III, a well-rounded mirrorless choice
- Nikon Z6 II, if you already use Nikon Z lenses
- Canon EOS R6 Mark II, for Canon RF shooters
Very wide lenses exaggerate whatever sits closest to the front, so keep your subject's distance in mind. The focal length converter helps if you want to compare framing across sensor sizes.
Written by Claude from this site's pages.