2. Depth of field is the part of the image that
appears sharp
The transition from sharp to un-sharp is
gradual
Depth can be shallow
or deep
It is affected by:
◦ Aperture
◦ Distance from subject
◦ Focal length
What is Depth of Field?
3. When a photo has a shallow depth of
field, the portion of the picture that is in
focus is small
What is a Shallow Depth of Field?
4. When a photo has a deep depth of field,
the portion of the picture that is in focus is
large
What is a Deep Depth of Field?
5. Aperture is a hole within a lens that
controls the amount of light that is let in
Aperture is measured in f-stops
A large opening results in shallow depth
A small opening results in deep depth
What is Aperture?
6. A large opening results in a sharp
foreground and a blurry background or a
shallow depth of field
A small opening results in a deeper depth
of field
Shallow Deep
How Does Aperture Affect Depth?
7. The Distance between you and your
subject is important in determining depth
of field
The closer you are to your subject, the
shallower the depth of field
How Does Distance Affect Depth?
8. Focal length is an expression of the
magnification power of a lens and is
usually measured in millimetres
In other words,
it determines
how far a lens
can zoom in or
out
What is Focal Length?
9. The smaller the focal length the greater
the depth of field
A smaller focal length creates a wider
angle of view, which results in a deeper
depth of field
How Does Focal Length Affect Depth?
10. Depth of field can be used creatively in
photos to get interesting and beautiful
results
It is affected by three things:
◦ Aperture
◦ Distance from the subject
◦ Focal length
Experiment with depth of field in your
photos to get new, beautiful results!
Conclusion: Depth of Field
