Not bad for the caouchouc plastic threaded ring much too thick.

As I have often faulted put it in a drawer after finding usual strong vignetting at wide-angle, alas generated not by the well-designed rubber funnel but by the support ring, which made its centimeter! It was fitting to a 16-50 Sony E, difficult to protect the 24mm.Enlevé equivalent with a hot blade 3.5mm crown and vignetting disappeared. So much for the second output thread intended to replace the cap, it is also what causes the increased thickness. To handyman or with a 28mm equivalent wide angle.