I'm not sure whether this is an "in-game feature" or a technical limitation of some sort but...

Well, the introduction and the early game put me too much on a timer while I'm busy trying to figure out the controls and game mechanics. This effectively taught me that it's easier to just spam photos instead of carefully composing and taking only the pictures you really want.

It was all good until now: the camera no longer takes a photo, instead it just makes a beep sound. Oops. I've verified that deleting photos from the album makes it possible to take that many photos again. So there's an undocumented & hidden limit (or maybe it is mentioned somewhere and I'm just blind). My album had 113 pages, or approximately 2250 photos, when this happened.

Too bad the UI for reviewing photos is so sluggish, removing the bad ones while keeping the best is going to take me forever.