What are the subtractive primary colors?

When mixing flash and ambient light, adjusting the aperture affects...

Which of the following will almost always cause trouble when using an on-camera flash unit?

If a 4MP camera can give a 4x6" print at a certain quality, how many megapixels would be needed to generate a print twice the size (12x8") at the SAME quality?

The most common process for a reversal film (slide) is:

True or False: A red filter will soften clouds and lighten skies when using B&W film.

TTL stands for...

How is redeye reduced when using a flash?

Which of the following focal lengths is more suitable for close portrait shots?

Which f/stop will render a photograph with the most depth of field?

What is another name for a mirror lens?