Camera feature (9)
(Another definition for autofocus that I've seen is " feature on camera".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">camera feature</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for zoom that I've seen before include "Enlarge" , "Change focus smoothly" , "Rush around" , "George --, gave his name to a form of algebra" , "Video communications system" .)