BEFORE YOU GO OUT...YOUR CAMERA SHOULD BE ON ENTIRELY MANUAL SETTING WHICH IS (M) ON THE DIAL, as well as YOUR LENS SHOULD BE ON MANUAL (M)
In optics, particularly as it relates to film and photography, depth of field (DOF) is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image. Although a lens can precisely focus at only one distance at a time, the decrease in sharpness is gradual on each side of the focused distance, so that within the DOF, the unsharpness is imperceptible under normal viewing conditions.
In some cases, it may be desirable to have the entire image sharp, and a large DOF is appropriate. In other cases, a small DOF may be more effective, emphasizing the subject while de-emphasizing the foreground and background. In cinematography, a large DOF is often called deep focus, and a small DOF is often called shallow focus.
Things that affect DOF.
1. f stop, the smaller the aperture (size of lens opening)the more depth of
field. (f 16 gives more depth of field and f 2 gives less)!
2. Distance from focused subject: The closer the camera is to the focused
subject the less depth of field. !
3. Focal Length: The longer the focal length the shallower the depth of
field.!Remember: When you use a small aperture (f 16) the shutter speed will
have to be set at a slower setting (open longer) than if you use a larger
opening ( f 2.8).!
In optics, particularly as it relates to film and photography, depth of field (DOF) is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image. Although a lens can precisely focus at only one distance at a time, the decrease in sharpness is gradual on each side of the focused distance, so that within the DOF, the unsharpness is imperceptible under normal viewing conditions.
In some cases, it may be desirable to have the entire image sharp, and a large DOF is appropriate. In other cases, a small DOF may be more effective, emphasizing the subject while de-emphasizing the foreground and background. In cinematography, a large DOF is often called deep focus, and a small DOF is often called shallow focus.
Things that affect DOF.
1. f stop, the smaller the aperture (size of lens opening)the more depth of
field. (f 16 gives more depth of field and f 2 gives less)!
2. Distance from focused subject: The closer the camera is to the focused
subject the less depth of field. !
3. Focal Length: The longer the focal length the shallower the depth of
field.!Remember: When you use a small aperture (f 16) the shutter speed will
have to be set at a slower setting (open longer) than if you use a larger
opening ( f 2.8).!
Assignment:
explore depth of field through aperture. try to use the composition styles above as various styles will lend themselves easily to shallow and deep depth of field photographs.
explore depth of field through aperture. try to use the composition styles above as various styles will lend themselves easily to shallow and deep depth of field photographs.
- take three to four different compositions with a deep depth of field, (HIGH F STOP) and
- take three to four different compositions with a shallow depth of field. (LOW F STOP)