ГРИП плоский? Фокальная плоскость выпуклая? о чем молчат производители телефонов?) Кроп или ФФ?

IMPORTANT! All videos and all the action will first appear here https://vk.com/fotoklubpro ! There will also be contests and a lot of useful things about photography! All questions on the topic of photography, write to me in contact! All videos are duplicated there; when YouTube is blocked, they will still remain in contact, both old and new! And there are many more opportunities for learning there! https://vk.com/fotoklubpro