At the last print night, four of the eleven prints on the wall were phone photographs. Nobody could tell which until the names came off at the end, which is the entire reason we cover them.
If you have been putting off coming on a walk because of what you would be carrying, please stop. The constraint of a fixed lens and no controls has produced more interesting work in this group than any amount of glass.
The one thing worth doing is turning off whatever your phone calls its scene enhancement. It is the only setting that consistently ruins blue hour.