Roger,

There was a misunderstanding; I meant digital rotational cameras.

Concerning the flexibility: I once thought of buying a Roundshot Super 35. This is not the ideal camera for handheld use. But a photographer using a Roundshot 28 already, would rather fix a static viewing aid to the grip before obtaining a swing lens camera, just for hendheld, limited angle use. Most probably he would do so with the Super 35 too...