Fisheye for hobby purposes

I was looking for a fisheye lens for spherical panoramas. It should not be overly expensive, which is why the Walimex seemed just right.
Something I was surprised that the panel you have to manually set here and the data is not clearly transmitted to the camera. That is the place of the Exif data remains empty. If you want to put together a bracketing to HDR, you must first enter the Exif data retrospectively. A little complicated, but it is also about 1,000 euros cheaper than the fisheye lens from Canon (8-15mm).
Well done is the lens cap: this has a function for snapping. So it does not fall off when you hold the camera down.
On the whole, I am satisfied. For hobby use it is sufficient.