Like a point of interest in photography? (5)
I believe the answer is:
focal
'like a point' is the definition.
(I know this)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for focal that I've seen before include "Type of length or point" , "Relating to a centre of interest" , "and 21 Across: Centre of attraction" , "sort of length" , "Things are concentrated at such a point" .)