Opening in a Lens That Lets Light Into a Camera

This page is the CodyCross answer for the clue below from Photography, Group 2006, Puzzle 5 (Natural Light).

Question is: Opening in a Lens That Lets Light Into a Camera

and the answer is: APERTURE

Word Meaning:

APERTURE — A small or narrow opening, gap, slit, or hole.

Definitions from Wiktionary.