PINHOLE

Balloon buster

• A poster may have one

• Aperture

• Balloon flaw

• Camera obscura feature

• Camera type

• Certain camera aperture

• Film flaw

• Flask flaw

• Homemade camera feature

• It admits very little light

• It's hard to see through

• Small aperture

• Tiny aperture

• Tiny opening

• Tiny puncture

• With no help, I find opening

• A small puncture that might have been made by a pin