It would be very helpful to have 0.5x zoom (i.e. zoom out/wide angle/etc.) for photo captures while using Survey123 field app for photo collection. In most applications we use photos for, it is ideal to have 1 photo with the entire 'scope' in frame rather than multiple attached to the survey record and adding the 0.5x zoom/zoom out option would resolve this a majority of the time for us - particularly in tight spaces.
Currently, we encourage our users to take photos within Survey123 as it directly links the photos to the correct survey record. They have the option of uploading photos taken outside the app, however, in our experience this is more time consuming and error prone than just taking photos solely in the app - particularly for multiple location projects.
