APERTURE - lens opening, which allows light into the camera.

  • A wide aperture (f/3.5) allows a lot of light into the camera. This is for LOW LIGHT situations.

  • A small aperture (f/27) allows very little light. This is for BRIGHT LIGHT situations


DEPTH OF FIELD - area of focus in your photograph.

  • With a large depth of field, much of the photograph is in sharp - use a small aperture (like f/27)

  • With a small depth of field, very little of the photograph is sharp - use a large aperture (like f/3.5)



Examples of: SMALL DEPTH OF FIELD

depth-of-field-3.jpg
book&glasses.jpg
image005.jpg
irvingpenn1965.jpg

Examples of: LARGE DEPTH OF FIELD

1986IrvingPenn.jpg
phs8pplensblur_1.jpg
Akertesz.jpg
penn_watermelon.jpg