Professor Barsky: Reminder that this week's assignment is to move your vantage point and vary your focal length to produce different perspective effects
in your images, such as showing how you can get edges/lines that are parallel in the real world to either appear parallel in your photograph
or highly convergent in your photograph, and think about how other less rectilinear shapes are also affected (e.g. a curvy automobile body).
Here's an idea: photograph a spoon from very close using a wide angle lens (short focal length) and also from far using a telephoto lens (long focal length).
-"Vanishing Point" = the point in an image where lines that are truly
parallel in the real world will meet (except a certain set of them)
example: railroad tracks
-vertical lines going up converge when looking up (vanishing point straight
ahead)
-Plane of Image of 3 plane projection onto 2 plane: if lines are parallel
to the plane of an image they remain parallel
-changing perspective: off axis/closer = less parallel, on axis/farther
away = more parallel (depends on what you want in your image artistically
with a scientific strategy)
-photographers must be resourceful to get the right shot (distance is key
because it changes/controls perspective)
-when focal length is changed is changes the angle of view thus the
perspective of the object is distorted/not "normal"
-Ansel Adams (1930s) was apart of the "f/64 club" and had excellent
technical images. Used a "View Camera" with a big film sheet to get less
grainy, very detailed pictures with a camera that you can bend to shoot
perfectly parallel lines. New cameras today need a special lens to
accomplish this because the film and the lens are immobile.