Related Clues:

• Something to shoot through
• Fisheye or contact
• Imitator
• Eyesight enhancer
• It gets capped
• Oculist's piece
• Camera component
• Fisheye ___
• Fish-eye, e.g.
• It helps keep you focused
• Copier part
• Film, in Variety-speak
• Magnifying glass
• Something to see through
• Periscope part