Basics to Remember

Aperture

The aperture is basically a hole in the lens which lets light into your camera. It's formed by a ring of metal blades called the iris ordiaphragm. As the size of the hole changes, more or less light enters the camera, affecting the exposure of an image.

Higher #: less light

Lower #: more light

Depth of field is the amount of distance between the nearest and farthest objects that appear in acceptably sharp focus in a photograph.

Smaller # = smaller depth of field

Larger # = greater depth of field

Shutter Speed

Slow SS: 1/15-1/60(more blur, more light)

Fast SS: 1/125-1/1000, (freezing motion, less light)

*Slower SS= brighter the photo

ISO

ISO is how quickly your camera will react to the light.

Higher ISO reacts quicker to light, more noise & pixels.

Lower ISO reacts slower to light, less noise & pixels.

How do these concepts interrelate to proper exposure?