>>3062342There's no rule about aspect ratios. Photography is supposed to be art, the artist desides what he (or she... wait hahaha no) wants. Some old timer film fags like 6:7 because it works best with print, most prefer 3:2 these days simply because they're used to it. 16:9 just looks like phone shots and 4:3 remind people of shitty old point&shoot cameras, crappy flickering TVs and windows 95.