Page 62 - NyghtVision Boot Camp One Fill Edition
P. 62

12. Using Depth of Field






                                  Changing the way the camera sees the world, 2.



          Not every image can or should be shot using an F-stop of eight or higher - especially
          when  the  enviromental  conditions  make  using  long  exposures  difficult.  Still,  there  are
          ways to extend depth of field.
          Perhaps it is one of the cultural biases inherent in our    “thick”? that is not what we have been taught.
          culture. Perhaps it is a product of how we are all edu-     Remember, the camera isn’t bound by any of
          cated. Whatever the reason, we tend to think of space       our expectations. It has no preconceived
          as linear and time as sequential. We also tend to think     notions about the  world or how
          of a focal point and not in terms of a focal plane. That    things should be. It is up to us
          is to say, we are focused on a point within the image or    to reframe  how  we  see the
          scene. Unfortunately, that thinking limits what we can      world in order to take
          do with the camera.
                                                                      advantage  of what
                                                                      the camera can
          To the camera’s eye, a series of points which we per-
          ceive to be in different planes, can be and are in the      see.
          same  plane. So, even  of those  points  are three feet
          apart, to the camera, a very thick line connects them.
          I  am  sure  you  are  confused....  How  can  a  line  be



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