What describes the amount of light allowed to pass through a camera lens?

More Questions:

What does the abbreviation YMCA stand for?

People with hypertrichosis have lots of what?

What comic strip character is Beetle Bailey's sister?

Who wrote the novel "The Picture of Dorian Gray"?

What is the capital of the Canadian Province of Quebec?

Which European country replaced the Drachma with the Euro?

In terms of land area, what are the three largest countries bordering China to the north?

Balsam, Fraser, and Douglas are all types of what?

What is a woolly bear?

Who played the role of Basil Exposition in the three "Austin Powers" movies?

What manager founded the Backstreet Boys and *NSYNC?

Who preceded Georges Pompidou as French President?

What large amphitheater in Rome was opened to showcase gladiator combat?

What is Eddie's last name in the TV show "The Courtship of Eddie's Father"?

In the game series "Banjo-Kazooie", who is Banjo's little sister?