What does "A" Aperture Priority mode do?

What crop factor does APS-C typically have?

How do you take photographs at night or in low light scenarios?

A flattering form of portrait lighting is named after which famous painter?

How is the inverse square law best explained?

What is "rear-curtain sync"?

Some digital cameras have sensors that make educated guesses when detecting colors. This is a process called...

When a linear polarizing filter can't be used because of interaction with polarized sensors in a camera, one can use what instead.

A T-Stop is different than an F-Stop in that it measures the actual amount of light passing through the lens.

Using a macro lens at f/5.6, as opposed to a standard 50mm lens at f/5.6, will likely:

When would you use an extension tube?