There is no limit for the zoom of a camera, but the The 26X Longest Zoom Digital Camera is one of the longest zoom cameras on the market. But you can always buy a longer zoom for a camera that does not have one .
zoom is to enlarge the image and capture in a digital camera
Optical zoom is way better than digital zoom as digital only expands the picture. Optical zoom actually zooms in.
Canon makes a high quality zoom digital camera. However, these cameras are very expensive. Go to a local electronics store and ask about a reasonably priced high quality zoom digital camera.
Optical and digital. With optical zoom, the camera uses lenses to magnify objects. In digital zoom, the camera's built-in software creates a magnified image.
The Panasonic LX7 digital camera has all the usual features found on a digital camera like digital zoom and face recognition but this camera allows for full manual control of the aperture ring expanding the zoom and focus of the camera.
YOur eyes
Some newer models have 18x zoom, but 10x is typical for most extended zoom digital cameras.
The Panasonic Lumix DMC-FZ28 has the best zoom capabilities.
Depends what your using it for
I usually see anywhere from 6x to 12x optical zoom, then most digital cameras also have digital zoom, up to about 20x
The Canon S-series have great zoom and can even do digital zoom for distant objects.
A optical zoom use the lenses to focus in on a subject, pretty much the same way binoculars work. Digital zoom magnifies the subject by enlarging in in the pic thru a digital process, this is not a true type of zoom.