The rotation point has to be below the nodal point of the lens, which for the vast majority of cameras is not aligned with the mounting screw. An offset of a few millimetres can already mean that closer objects cannot be aligned.

Even if you only intend to photograph wide open spaces, you’ll get difficulties because the images won’t exactly add up to 360 degrees, which makes the pano want to buckle.

This product is of limited use, unprofessional, and overpriced.