Concentrate on what a camera can do (5)
I believe the answer is:
focus
'concentrate' is the definition.
(I know that concentrate can be written as focus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for focus that I've seen before include "Concentrate, zero in" , "Bull's-eye" , "Hub" , "Point at which light rays converge or diverge" , "Adjust for sharp image" .)