Why are there no small long-zoom or wide-zoom cameras with optical viewfinders (OVF)?
A small camera with high-zoom cannot have an optical viewfinder. The reason is that a TTL viewfinder like an SLR takes space due to the pentaprism, pentamirror or porro-finder. Any one of these would not make the camera small. Since an optical tunnel viewfinder is a second tiny zoom-lens, it is difficult for such lens to have a long or wide zoom. Not only that, these lenses have to follow the camera lens as closely as possible. The larger the zoom range, the more difficult it would be. Even wide-angle compact cameras do not have optical viewfinders for the same reason.
