What do you mean by shooting from the secondary camera?

The photographer's deputy assisted in the shooting. Wedding photography is generally double-station, with one cameraman as the main cameraman and one assistant cameraman as the assistant cameraman. The auxiliary camera after the wedding is mainly responsible for shooting close-ups and parts of couples, or warm scenes where friends and relatives cheer and bless. The scene shot by the sub-camera can provide more and better materials for later editing, and the final video can better show and retain the wedding scene of the couple.