Camera's glass (4)

I believe the answer is:

lens

(Other definitions for lens that I've seen before include "Focussing device" , "Optical device using light to form images" , "Part of telescope" , "Piece of glass in optical instrument" , "One focusing light" .)

I've seen this clue in the Newsday.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.