Good morning. I would like to start a long-term documentary photography project. My intention would be to use only one camera, one lens and one film. The camera will be either a canon 7 or a pentax me super, although it is slr is very portable. Since I will photograph urban suburbs, people, landscapes and maybe some interiors I am undecided between which lens to use between 28mm.35mm and 40mm. Regardless of whether the choice is personal, I would like to ask those who have more experience than me for some advice. 28mm is great for urban landscapes or for up-to-close photos, but maybe it's a problem with unknown people? I read that many use the 35mm that I do not have. I use the 40mm. in the end it is practically very similar to the 35mm?