I know this has nothing to do with taking good photographs, but i really want to know.
When they say f/1, does it mean that the aperture diameter is the same length as the focal length?
So for zoom lens, the actual aperture size for the different focal length would vary in size to keep it at say f/2, right?
When they say f/1, does it mean that the aperture diameter is the same length as the focal length?
So for zoom lens, the actual aperture size for the different focal length would vary in size to keep it at say f/2, right?