Remark to avoid misunderstandings: the user is an amateur and does not claim to have a deep knowledge of optics. I shoot on a7iii and a7c, the impressions are strictly positive I bought it mainly for video filming a home blog (talking head at the table + subject shooting), but now I carry it with me everywhere. The previous optics are whale sel2870 (from three) and sel2860 (from tseshka). By the quality of the picture - heaven and earth (which, again, is expected). I would really like to write something smart about distortions and defocuses in the corners, but I don’t understand this, so consider the review as an amateurish “nraitsa”.