camera zoom explained

August 2, 2011 12:32 pm | Uncategorized | No comments

Can someone explain the meaning of the zooming-factor(ZF) of a camera. These ZFs are refered to what values?

Does the optical zoom base on the certain focal distance of the object, say 2.5 meters ? Does digital zoom increase or increase the number of pixels per an area if we choose to have a digital zoom [...]