I am satisfied, the product fully corresponds to the description.
Although it won't fully demonstrate the benefits of a wide perspective on a crop, it is sufficient to call it "regular."
Using this stick, a few shots:
http://500
http://500
http://500
http://500
http://500
Pros
The requirement for a macro lens has evolved into a "desired need" since UNKILLABLE (fallen multiple times) allows you to shoot from a very close distance.
Cons
When shooting at 60, where the sensitivity must be increased, you sometimes desire a 2.8 lens, yet when using such a lens at 60, you occasionally require stronger cups:
Chromatic aberrations can sometimes be seen at 17mm and are rather obvious.