2. Depth of field
Depth of field (DOF) is the term used to describe the size of the area in your
image where objects appear acceptably sharp. The area in question is known as
the field, and the size (in z-space) of that area is the depth of that field.
3. Rack Focus
A rack focus is an emphasized focus pull, where the acceptable focus range is
intentionally shifted from one subject to another.
4. Shallow Focus Shot (Shallow DOF)
In shallow focus shots, your
subject is in crisp focus while the
foreground and background
scenery is out of focus. This limits
your depth of field to create
emphasis on your subject.
5. Deep Focus Shot
In a deep focus shot,
everything in your
frame is in focus. This
is when you need
your audience to feel
the scenery or
particular scene
elements.
6. Tilt-Shift Shot
A tilt-shift lens rotates
perspective within the
lens and emulates
selective focus. It can
make parts of your
image appear in sharp
focus while others are
out of focus.
7. Soft focus
Whereas deep focus
keeps everything in
focus, and shallow
focus keeps something
in focus, soft focus
shots keep nothing in
100% sharp focus. This
is caused by either a
flaw in the lens itself or
through special filters.
8. Split Diopter
A split diopter is an additional
lens element that allows for two
simultaneous focal lengths. In
other words, you can achieve
shallow focus in the foreground
AND in the background, while the
middle ground remains out of
focus.
