MOTION CONTROL
Henri Cartier Bresson-"Decisive
Moment" __Paul Pearce "Go
Fish"
We first learned
how to control our exposures with the "Black White and Gray"
execise. Keep this in mind when making motion photographs. Adjust your
evposure value to get a properly exposed image.
Make sure you understand
how to adjust the shutter speed by changing the aperture (aperture
priority mode). This is how we did the exercise in class.
Remember you can
change the range of the shutter speeds by changing the ISO
setting in your camera.
The goal
of this assignment is to understand and master the use of shutter speed
to control how movement looks within the photograph.
You will need a tripod to do this assignment.
You can use se the Equivalent Exposure wheel to help check
your changes in shutter speed and aperture.
Printable
Exposure wheel (pdf)
Phase One
~ Make a series of photos of moving subjects
(bracket your speeds)
1) Find a subject that is moving in moderate light. Direct sunlight
is too bright to allow slow shutter speeds. If the light is too dim,
you wont be able to freeze the motion with a fast shutter speed.
Cloudy or shady outdoor light and bright indoor light should work best.
The light in our classroom is just about right. Your subject should
be predictable and consistent. When starting out you should simplify
what you shoot. Pick something that wont stop or move away as
you set up to shoot. The lighting should also be consistent.
2) Set up
your tripod and
compose your photograph, framing to concentrate on the motion and eliminate
distracting elements. You will make multiple exposures at different
shutter speeds without moving the camera.
3) Set your
camera to "aperture priority" and check the exposure.
If you subject is lighter or darker than "medium gray"
make exposure value adjustments to get the correct exposure.
4) Adjust
your lens opening (f/stop) to the smallest opening (highest
number) like f/16. This will require a long shutter speed to give you
the proper exposure.
5) Change
your lens opening to the largest opening (lowest number) like
f/2 or f2.8 and change your shutter speed to get the proper exposure.
Your shutter speed should be much faster. Make your second exposure.
If the lighting is not optimal, you might have to change the ISO to
use the largest and smallest lens openings.
7) Shoot
a series of exposures that fall between exposures # 1 and # 2.
Now repeat this
sequence with 2 more subjects, try for variety.
Phase
Two~ Experiment with different motion control techniques.
Remember the techniques
we discussed in class- Panning the camera, extra long exposures and
fast shutter speed to freeze motion.
Shoot a variety
of images to try out the different effects. Save your mistakes to try
to learn about the way timing affects images.
You will select
the best of your photos to share in class.
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